High Protein Unstuffed Peppers | One-Pan Meal Prep

Featured in ONE-POT AND SHEET PAN MEALS.

High protein unstuffed peppers offer a flavorful, easy one-pan meal. Perfect for meal prep, this healthy dish is packed with nutrients and simple to make.
Marcus Okafor - Recipe Author
Updated on April 6, 2026 at 04:57 AM
Prep Time: 15 min Cook Time: 25 min Total Time: 40 min 4 Servings Beginner
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High Protein Unstuffed Peppers | One-Pan Meal Prep | Recipes By Klara

Remember those cozy, classic stuffed peppers from childhood? The ones that took forever to make, but were so worth it? Well, I totally loved them, but let's be real, who has that kind of time on a Tuesday? One busy evening, after a particularly chaotic workday, I just tossed everything into a pan, hoping for the best. And boom! These high protein Unstuffed Peppers were born. It was pure magic, a total game-changer for meal prep!

Oh gosh, the first time I made these Unstuffed Peppers, I totally forgot the rice! I was so excited, stirring away, thinking, 'This looks a bit… soupy?' It wasn't until I went to dish it out that I realized my huge oversight. Oops! We still ate it, of course, but it was more of a deconstructed bell pepper soup. Lesson learned: always double-check your ingredients list, even for a simple one-pan meal!

The Hearty Ingredients for Unstuffed Peppers

  • 1 lb lean ground beef (90/10): This is our protein superstar! I swear by 90/10 lean ground beef because it gives you that rich, savory flavor without all the grease. Nobody wants a greasy pan of Unstuffed Peppers, right? I've tried fattier grinds before, and honestly, it just makes the whole dish heavier and you have to drain so much fat. This lean choice keeps things lighter but still super satisfying.
  • 2 large bell peppers (any color), diced: Bell peppers are the heart of this dish, literally! I love using a mix of colors red, yellow, orange because they add such a beautiful pop and a touch of sweetness. Green peppers are fine too if that's what you have, but they can be a bit more bitter. These bring that classic stuffed pepper flavor to our Unstuffed Peppers, making it feel authentic.
  • 1 large yellow onion, diced: Never underestimate the power of a good onion! This yellow onion forms the aromatic base for our Unstuffed Peppers. When it softens and sweetens, it creates this incredible depth of flavor that just makes everything sing. I used to rush this step, but now I take my time to get it perfectly translucent it makes all the difference, trust me.
  • 3 cloves garlic, minced: garlic, oh glorious garlic! It's the unsung hero that elevates almost any savory dish, and our Unstuffed Peppers are no exception. That pungent, aromatic kick just wakes everything up. I'm a garlic fiend, so sometimes I even throw in an extra clove or two. Just be careful not to burn it, or it'll get bitter, and nobody wants that!
  • 1 (14.5 oz) can diced tomatoes, undrained: These diced tomatoes are essential for that classic tangy, bright tomato flavor. Keeping them undrained adds liquid and helps the rice cook, plus it means less waste! They break down beautifully as the Unstuffed Peppers simmer, creating a rich, flavorful sauce. I've tried fresh tomatoes, but for a quick meal prep, canned is just so much easier and consistent.
  • 1/2 cup uncooked brown rice: Brown rice is our secret weapon for making these Unstuffed Peppers super hearty and giving them that 'stuffed' texture without all the work. It takes a little longer to cook than white rice, but the nutty flavor and added fiber are so worth it. Plus, it absorbs all those amazing flavors from the sauce, becoming incredibly delicious.

How to Whip Up These Amazing Unstuffed Peppers

Step 1: Brown Beef & Onion:
First things first, get your big skillet over medium-high heat with that olive oil. Once it's shimmering, toss in your lean ground beef. Break it up with a spoon, letting it get nice and browned, releasing all those delicious juices. Then, add your diced onion right in there. Stir it all together, letting the onion soften and soak up some of that beefy goodness. You'll smell it starting to sweeten that's when you know you're building a fantastic foundation for our Unstuffed Peppers!
Step 2: Sauté Veggies:
Once your beef is browned and the onion is translucent, it's time for the aromatics! Push the beef and onion to one side of the pan, add a tiny bit more oil if needed, and toss in your minced garlic and diced bell peppers. Let them sizzle for a few minutes, stirring occasionally, until the peppers start to soften a bit and the garlic smells amazing. Don't let the garlic burn! This step really brings out the vibrant flavors that define our Unstuffed Peppers.
Step 3: Add Liquids & Rice:
Now for the magic! Pour in your undrained diced tomatoes, tomato sauce, and beef broth. Give it a good stir to combine everything. Then, add your uncooked brown rice and that splash of Worcestershire sauce it's a secret weapon for depth of flavor! Mix it all up until the rice is evenly distributed in the sauce. It's starting to look like our amazing Unstuffed Peppers already, isn't it? So much easier than stuffing individual peppers!
Step 4: Simmer & Cook:
Bring that beautiful mixture to a gentle boil, then immediately reduce the heat to low, cover the pan tightly, and let it simmer. This is where the magic happens for our Unstuffed Peppers! The rice will slowly absorb all those delicious liquids and flavors, becoming tender and plump. Resist the urge to peek too often, just let it do its thing for about 25-30 minutes. You'll smell the rich tomato and beef aromas filling your kitchen.
Step 5: Check Rice & Season:
After about 25-30 minutes, carefully uncover and give it a good stir. Check the rice it should be tender, but if it's still a bit firm, add another splash of broth or water, cover, and cook for another 5-10 minutes. This is also the perfect time to taste your Unstuffed Peppers and adjust the seasoning. Add salt and pepper to your liking. Sometimes I add a pinch of dried oregano or basil here too, for extra oomph!
Step 6: Melt Cheese:
The grand finale! Once the rice is perfectly cooked and the flavors are spot-on, sprinkle your favorite shredded cheese over the top. Cheddar, mozzarella, or a blend works wonderfully. Cover the pan again for just a few minutes, or until the cheese is gloriously melted and bubbly. That gooey, cheesy layer takes these Unstuffed Peppers from great to absolutely irresistible. Oh, the anticipation!

Honestly, cooking these Unstuffed Peppers feels like a warm hug. It's one of those recipes that fills your kitchen with the most comforting aromas. I love how everything just comes together in one pan, simmering away, transforming simple ingredients into something so hearty and satisfying. It's my go-to when I need a delicious meal without a ton of fuss, especially after a long day. Pure kitchen therapy!

Keeping Your Unstuffed Peppers Fresh: My Best Tips

So, you've got some glorious leftover Unstuffed Peppers? Lucky you! Let them cool completely before transferring to an airtight container. They'll keep beautifully in the fridge for up to 3-4 days. I've totally made the mistake of putting warm food straight into the fridge, and it just creates condensation, making things soggy yuck. For longer storage, you can freeze individual portions in freezer-safe containers for up to 3 months. Just thaw in the fridge overnight and reheat gently on the stovetop or in the microwave. Sometimes the rice can get a little soft after freezing, but the flavor is still there!

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High Protein Unstuffed Peppers | One-Pan Meal Prep - Image 1 | Recipes By Klara

Playing with Flavors: Substitutions for Unstuffed Peppers

I've had my share of kitchen experiments with these Unstuffed Peppers, let me tell you! If ground beef isn't your jam, ground turkey or chicken works really well too, just make sure to season it generously. For a vegetarian twist, try lentils or even a mix of mushrooms and black beans instead of meat. I've swapped brown rice for quinoa in a pinch, and that was tasty, but the texture is different. As for the bell peppers, any color is fine, but sometimes I throw in a diced zucchini or even some spinach at the end for extra greens. Don't be afraid to play around with the cheese either, a smoked gouda would be amazing!

Serving Up Your Delicious Unstuffed Peppers

Okay, so you've got a steaming pan of these incredible Unstuffed Peppers, now what? My favorite way to serve them is with a simple side salad, dressed with a light vinaigrette, to cut through the richness. A crusty piece of garlic bread or a warm dinner roll is also a must for soaking up all that delicious sauce seriously, don't skip it! If you're feeling fancy, a dollop of sour cream or a sprinkle of fresh parsley on top adds a nice touch. It's hearty enough on its own, but these little additions just make it feel extra special, like you spent all day cooking!

The Comforting Story Behind Unstuffed Peppers

Stuffed peppers, in various forms, have been a comfort food around the world for ages, you know? From Mediterranean dolmas to Middle Eastern mahshi, the idea of stuffing veggies with grains and meat is ancient. Our American version, often with ground beef, rice, and a tomato sauce, really took off in the mid-20th century as a hearty, economical family meal. My grandma used to make them, and while these Unstuffed Peppers are a shortcut, they carry that same nostalgic, homey feeling. It's about bringing that classic comfort to our busy modern lives, keeping the tradition alive, just in a more convenient package!

And there you have it, friends! My go-to recipe for high Protein Unstuffed Peppers. It's truly a labor of love, but one that rewards you with so much flavor and comfort for so little effort. I hope you give this one-pan wonder a try and fall in love with it just as much as I have. Don't forget to tag me on social media or leave a comment below with your thoughts and any fun twists you try! Happy cooking!

High Protein Unstuffed Peppers | One-Pan Meal Prep - Image 2Pin it
High Protein Unstuffed Peppers | One-Pan Meal Prep - Image 2 | Recipes By Klara

Your Burning Questions About Unstuffed Peppers, Answered!

→ Can I use white rice instead of brown rice?

You totally can! If you use white rice, it will cook much faster, probably around 15-20 minutes. Just keep an eye on it and adjust the cooking time accordingly. The texture will be a bit different, but it'll still be delicious Unstuffed Peppers!

→ How do I make this spicier?

Oh, I love a little kick! You can add a pinch of red pepper flakes when you sauté the garlic, or stir in a diced jalapeño with the bell peppers. A dash of hot sauce when serving also works wonders. Spice up your Unstuffed Peppers to your heart's content!

→ What if I don't have beef broth?

No worries at all! You can absolutely use chicken broth or even just water if that's all you have. Beef broth just adds a little extra depth of flavor, but the Unstuffed Peppers will still be fantastic with other liquids. I've done it many times!

→ Can I add other vegetables?

Please do! That's the beauty of this dish. I've thrown in diced carrots, zucchini, or even a handful of fresh spinach during the last few minutes of cooking. Just remember to add veggies that cook quickly so they don't get mushy in your Unstuffed Peppers.

→ Is this recipe freezer-friendly?

Yes, it is! Once cooled, you can portion out your Unstuffed Peppers into freezer-safe containers and freeze for up to 3 months. It's a lifesaver for busy weeks. Just thaw overnight in the fridge and reheat gently for a quick meal!

High Protein Unstuffed Peppers | One-Pan Meal Prep

High protein unstuffed peppers offer a flavorful, easy one-pan meal. Perfect for meal prep, this healthy dish is packed with nutrients and simple to make.

4.1 out of 5
(69 reviews)
Prep Time
15 Minutes
Cook Time
25 Minutes
Total Time
40 Minutes


Difficulty: Beginner

Cuisine: American

Yield: 4 Servings

Dietary: ~

Published: April 6, 2026 at 04:12 AM

Last Updated: April 6, 2026 at 04:57 AM

Ingredients

→ The Savory Foundation

01 1 lb lean ground beef (90/10)
02 1 tbsp olive oil
03 1 large yellow onion, diced
04 3 cloves garlic, minced
05 2 large bell peppers (any color), diced

→ The Rich & Grainy Simmer

06 1 (14.5 oz) can diced tomatoes, undrained
07 1 (8 oz) can tomato sauce
08 1 cup beef broth
09 1/2 cup uncooked brown rice
10 1 tbsp Worcestershire sauce
11 1 tsp dried Italian seasoning
12 1/2 tsp smoked paprika
13 Salt and black pepper to taste

→ The Melty Finish

14 1/2 cup shredded mozzarella cheese
15 1/4 cup fresh parsley, chopped, for garnish

Instructions

Step 01

Heat 1 tbsp olive oil in a large skillet over medium-high heat. Add 1 lb lean ground beef (90/10) and 1 large yellow onion, diced. Cook, breaking up the beef, until browned and the onion is softened, about 5-7 minutes. Drain any excess fat.

Step 02

Add 3 cloves minced garlic and 2 large bell peppers, diced, to the skillet. Cook for another 3-4 minutes until the peppers start to soften. This step builds the aromatic foundation for your High Protein Unstuffed Peppers | One-Pan Meal Prep.

Step 03

Stir in 1 (14.5 oz) can diced tomatoes (undrained), 1 (8 oz) can tomato sauce, 1 cup beef broth, 1/2 cup uncooked brown rice, 1 tbsp Worcestershire sauce, 1 tsp dried Italian seasoning, and 1/2 tsp smoked paprika.

Step 04

Bring the mixture to a boil, then reduce heat to low, cover, and simmer for 20-25 minutes, or until the brown rice is tender and most liquid is absorbed. Stir occasionally to prevent sticking. This ensures a perfectly cooked High Protein Unstuffed Peppers | One-Pan Meal Prep.

Step 05

Uncover and check if the rice is cooked through. If not, add a splash more broth or water and continue simmering. Season generously with salt and black pepper to taste, adjusting flavors for your High Protein Unstuffed Peppers | One-Pan Meal Prep.

Step 06

Sprinkle 1/2 cup shredded mozzarella cheese evenly over the top of the mixture. Cover the skillet again for 2-3 minutes, or until the cheese is beautifully melted and bubbly.

Step 07

Remove the skillet from heat. Garnish with 1/4 cup fresh parsley, chopped. Let the High Protein Unstuffed Peppers | One-Pan Meal Prep rest for a few minutes before serving warm.

Notes

  1. Customization: Feel free to swap ground beef for ground turkey or chicken for a leaner option. You can also use white rice, but adjust cooking time and liquid accordingly.
  2. Meal Prep Tip: This dish reheats beautifully! Divide into four airtight containers for easy grab-and-go lunches or dinners throughout the week.
  3. Spice It Up: For a little heat, add a pinch of red pepper flakes with the garlic, or a dash of hot sauce before serving.
  4. Serving Suggestion: Serve this hearty meal on its own, or with a simple side salad for a complete and balanced dinner.

Tools You'll Need

  • Large skillet (or Dutch oven)
  • Cutting board
  • Chef's knife
  • Measuring cups
  • Measuring spoons

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy
  • Soy

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 515 kcal
  • Total Fat: 25 g
  • Total Carbohydrate: 36 g
  • Protein: 39 g

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