Healthy Stuffed Pepper Bake (High-Protein One-Pan Casserole)
Prep: 15 mins Cook: 25 mins Servings: 9 See recipe card for live cost
Anne Rose
If you're a busy mom (or just a busy human) who wants a dinner that's genuinely good for you but tastes like comfort food, this healthy stuffed pepper bake is about to become your new best friend. It's the viral high-protein casserole from Dr. Rachel Paul, and it does everything stuffed peppers do — beef, peppers, tomatoes, melty cheese — without any of the fussy stuffing-and-standing-up business. Everything just goes in one pan.
The best part? It's packed with 37 grams of protein a serving and it's genuinely healthy — the "worst" thing in the whole dish is a little cheese and sour cream. Make one bake and you've got dinners for days that still taste amazing on day four.
Inspired by @dr.rachelpaul on TikTok.
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“Honestly so easy to make and it lasts a long time — this is a cook-in-15-minutes type meal that lasts you DAYS and still tastes amazing.” — Anne
The Healthy, High-Protein Stuffed Pepper Bake You'll Make on Repeat
This is stuffed peppers, deconstructed and made easy — and made healthy. Cauliflower rice keeps it light and low-carb while ground beef and mozzarella pack in the protein. You stir-fry, dump it in a pan, top with cheese, and bake. That's it. It's cheap, it's meal-prep gold, and it reheats beautifully all week.
- Prep Time 15 mins
- Cook Time 25 mins
- Servings 9
- Cost / Serving See card
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Dinner Made Easy
Recipe Title
Cost: $0.00 recipe / $0.00 serving
Step-by-step photos can be seen below the recipe card.
Step-by-step photos can be seen below the recipe card.
Ingredients
Instructions
Notes
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Nutrition Information
Serving:
Calories:
Serving Suggestions
Scoop it into a bowl and top with sliced avocado and a dollop of sour cream — that combo takes it over the top. It's a full meal on its own, but a side salad or some crusty bread rounds it out if you're extra hungry.
Storing & Reheating
This is a meal-prep dream. Store it in airtight containers in the fridge for up to 4–5 days — it honestly tastes just as good (some say better) after a day or two.
Reheat single portions in the microwave for 1–2 minutes, or warm the whole dish, covered, in a 350°F oven until hot. Add fresh avocado and sour cream after reheating. Freezes well too, up to 3 months.
Substitution Tips and Recommendations from Our Audience
Swap the ground beef for shredded rotisserie chicken — it tastes bomb and makes it even faster. Ground turkey works too. Want real rice instead of cauliflower rice? Use cooked white or brown rice (it'll bump the carbs). Any melty cheese works in place of mozzarella.
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Protein: shredded rotisserie chicken or ground turkey both work when you want to skip the beef.
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Rice: cauliflower rice keeps it light; cooked white or brown rice makes a heartier stuffed pepper casserole with rice.
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Cheese: mozzarella melts clean here, but cheddar, a Mexican blend, or pepper jack all work.
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Toppings: sliced avocado and a dollop of sour cream take it over the top — add them after reheating so they stay fresh.
Frequently Asked Q's
Quick answers on this healthy stuffed pepper bake — whether to cook the peppers first, covering the pan, the best cheese, common mistakes, and making it with rice and beef.
Q: Should peppers be cooked before stuffing?
For this bake, yes — dice the peppers and stir-fry them with the beef and cauliflower rice until everything is cooked through before it goes in the oven. That's what keeps the 15-minute bake from leaving crunchy peppers.
Q: Do you cover stuffed peppers when baking them in the oven?
Not this one. The filling is already cooked — you're just melting the cheese. Bake uncovered at 375°F for 15 minutes until the mozzarella is bubbly.
Q: What kind of cheese is best in a bell pepper casserole?
Shredded mozzarella melts clean and gooey here. Any melty cheese works — cheddar, a Mexican blend, even pepper jack if you want a little heat.
Q: What are common mistakes when making stuffed peppers?
Undercooked peppers, a watery filling, and overbaking until the cheese dries out. This deconstructed bake skips the stuffing fuss — cook the filling first, and pull it at 15 minutes. You're just melting cheese, not cooking the peppers through in the oven.
Q: How do you make stuffed pepper casserole with rice and ground beef?
Stir-fry diced peppers, cauliflower rice, and ground beef, dump into a baking dish with tomatoes, garlic salt, and taco seasoning, top with mozzarella, and bake 15 minutes. Want real rice? Swap in cooked white or brown rice instead of cauliflower rice.
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