Low-Carb Stuffed Pepper Skillet Bake (Individual Foil Pan Bowls)

Prep time: 15 minutes
Cook time: 25 to 30 minutes
Total time: about 45 minutes
Servings: 4
Course: Dinner
Cuisine: American
Method: Oven (stovetop prep, then baked)

Equipment

• Large skillet (12-inch is ideal)
• 4 individual foil pans (about 5 to 6 inches wide), or one 9×13-inch baking dish
• Baking sheet, to support the foil pans
• Sharp knife and cutting board
• Wooden spoon or spatula
• Instant-read thermometer (optional)

Ingredients

For the beef and pepper base

• 1½ lb (680 g) ground beef, 85/15 or 90/10
• 3 large bell peppers, one red, one yellow, and one green, cut into thin strips
• 1 medium yellow onion, diced
• 3 cloves garlic, minced
• 1 tbsp olive oil

For the sauce and seasoning

• 1 can (14.5 oz / 411 g) diced tomatoes, drained, or 1 cup (240 ml) marinara sauce
• 2 tbsp tomato paste
• 1 tsp Italian seasoning
• 1 tsp paprika
• ½ tsp garlic powder
• ¾ tsp salt, ½ tsp black pepper

For the topping

• 2 cups (200 g) shredded mozzarella cheese
• Fresh chopped parsley, for garnish

Optional extras

• ½ tsp red pepper flakes, for heat
• 1 tbsp Worcestershire sauce
• Provolone or Monterey Jack, mixed with the mozzarella
• 1 cup cooked cauliflower rice, stirred in to mimic the rice of stuffed peppers

Instructions

1. Preheat the oven. Heat the oven to 400°F (200°C). Place the foil pans on a baking sheet so they’re easy to move in and out.

2. Slice the vegetables. Cut the bell peppers into thin strips about ¼ inch wide, and dice the onion. Keep the slices thin so the peppers soften in the oven rather than staying crunchy.

3. Sauté the vegetables. Heat the olive oil in a large skillet over medium-high heat. Add the peppers and onion and cook for 4 to 5 minutes, stirring occasionally, until they start to soften and brown slightly at the edges. Add the garlic and cook for 30 seconds more. Transfer everything to a bowl.

4. Brown the beef. In the same skillet, cook the ground beef over medium-high heat for 6 to 8 minutes, breaking it into small crumbles with a wooden spoon, until no pink remains. Drain off excess fat.

Tip: Let the beef sit undisturbed for a minute or two between stirs so it develops brown, flavorful edges rather than steaming.

5. Build the sauce. Stir the tomato paste, drained diced tomatoes, Italian seasoning, paprika, garlic powder, salt, and pepper into the beef. Simmer for 3 to 4 minutes until the mixture thickens and looks glossy, not watery.

6. Combine. Fold about two-thirds of the sautéed peppers back into the beef mixture. Save the remaining third for arranging on top, so you get the colorful look in the photo.

7. Fill the pans. Divide the beef mixture evenly among the foil pans, pressing it in gently. Lay the reserved pepper strips on top.

8. Add the cheese. Sprinkle the mozzarella generously over each pan, covering the peppers and beef.

9. Bake. Bake for 15 to 20 minutes, until the cheese is melted and bubbling and starting to brown in spots. For the golden-brown patches shown in the photo, switch the oven to broil for the last 1 to 2 minutes and watch closely.

10. Rest and garnish. Let the pans cool for 5 minutes, since the cheese and filling are very hot. Top with fresh parsley and serve.

Recipe Notes and Tips

Cook the peppers first. Raw peppers release a lot of water in the oven and can make the dish soupy. Sautéing for a few minutes drives off moisture and builds flavor.

Drain the tomatoes well. Too much liquid is the most common cause of a watery bake. If you use marinara instead, choose a thick one.

Choose your cheese. Low-moisture, whole milk mozzarella melts into the best golden topping. Shred it yourself from a block if you can, because pre-shredded cheese contains anti-caking starch and melts less smoothly.

Mix the colors. Red and yellow peppers are sweeter, while green ones are more bitter and savory. Using all three gives balanced flavor and the colorful look in the photo.

Foil pans are handy. They make portioning, freezing, and cleanup simple. Place them on a baking sheet because they’re flimsy when full and hot.

Season in layers. Salting the vegetables, the beef, and the sauce separately builds more flavor than seasoning only at the end.

Don’t skip the rest. Cheese-topped dishes are molten straight from the oven. Five minutes of rest helps the filling set and prevents burns.

Variations

• Cauliflower rice version: Stir 2 cups of cauliflower rice into the beef mixture for the texture of classic stuffed peppers with very few carbs.
• Rice version: Add 1½ cups cooked white or brown rice to the beef for a more traditional stuffed pepper.
• Cheesesteak style: Use thinly sliced steak, provolone, and mushrooms in place of the beef and mozzarella.
• Tex-Mex version: Swap the Italian seasoning for chili powder and cumin, add black beans and corn, and top with pepper jack.
• Turkey or chicken version: Replace the beef with ground turkey or chicken, and add an extra tablespoon of olive oil since they’re leaner.
• Dairy-free: Use a dairy-free melting cheese or skip the cheese and top with nutritional yeast.
• Air fryer method: Cook the individual pans in the air fryer at 360°F (180°C) for 8 to 10 minutes, if they fit.
• Slow cooker method: Layer the raw peppers, beef, and sauce, cook on LOW for 4 to 5 hours, then top with cheese and cover until melted.

Troubleshooting

• It’s watery. The tomatoes weren’t drained or the peppers weren’t pre-cooked. Spoon off extra liquid before serving, and sauté the peppers longer next time.
• The cheese isn’t browning. Use whole milk mozzarella and finish under the broiler for 1 to 2 minutes.
• The cheese is greasy. Part-skim mozzarella and draining the beef well reduce the grease.
• The peppers are still crunchy. Slice them thinner and sauté for the full time.
• The beef is dry. Use 85/15 ground beef and don’t overbake. Once the cheese is melted, it’s done.
• The foil pans bent. Always support them on a baking sheet and lift from underneath.

What to Serve With It

• A crisp green salad with vinaigrette
• Steamed or roasted broccoli
• Garlic bread, for a non-low-carb meal
• Roasted zucchini
• Cauliflower mash
• Crusty bread for scooping up the sauce

Storage and Meal Prep

Refrigerate: Cool completely, cover tightly, and store for up to 4 days.
Freeze: Wrap the pans well in foil or place in a freezer bag and freeze before baking or after, for up to 3 months. Thaw overnight in the fridge.
Reheat: Warm covered in a 350°F (175°C) oven for 15 to 20 minutes, then uncover to re-crisp the cheese. The microwave also works for about 2 minutes, but the cheese won’t brown.
Meal prep tip: Assemble the pans up to a day ahead without the cheese, refrigerate them covered, then add the cheese and bake straight from the fridge, adding 5 minutes to the time.

Nutrition (Estimated, Per Serving, Based on 4 Servings)

• Calories: about 480
• Protein: about 38 g
• Carbohydrates: about 14 g
• Fiber: about 4 g
• Net carbs: about 10 g
• Fat: about 29 g
• Sodium: moderate, depending on your tomatoes and cheese