This family favorite stuffed pepper recipe started as a weeknight experiment and quickly became a regular in our rotation. I discovered the air fryer cut the cooking time in half while concentrating the pepper's sweetness and giving the filling a gently roasted finish. The contrast between the slightly crisped pepper edges and the saucy, savory filling is what keeps everyone coming back for seconds. I usually reach for 93/7 ground beef for flavor with less grease, but lean turkey works beautifully if you prefer a lighter version.

I first made these on a humid summer evening when the oven felt like overkill. Using the air fryer kept the kitchen cool and the peppers perfectly softened without turning mushy. The aroma of garlic, tomato, and browned meat fills the kitchen in a comforting, homey way — it's the kind of dinner that feels both nourishing and a little celebratory. These come together quickly: about 10 minutes of prep and roughly 10 minutes in the air fryer for a total of 20 minutes on the clock, which makes them ideal for busy weeknights.

Ingredients

• Bell peppers (6): Choose medium-sized peppers that can stand upright. Look for firm skins without wrinkles; red, yellow, or orange peppers are sweeter and caramelize nicely. Avoid very tall, floppy varieties that tip over in the basket.
• Ground beef, 1 pound (93/7): I use 93/7 for good flavor with minimal grease. You can substitute an equal amount of ground turkey or plant-based crumbles. If using fattier beef, drain excess fat well before building the filling.
• Shallot, 1 medium, diced: Shallots add a subtle, sweet onion flavor that softens quickly. If you don't have shallots, a small yellow onion is a fine substitute.
• Minced garlic, 2 tablespoons: Fresh garlic gives the filling its savory backbone; measure by tablespoon for consistent flavor. Use jarred minced garlic in a pinch (about 2 teaspoons equals 1 tablespoon fresh).
• 15-ounce can diced tomatoes, drained: Draining removes excess liquid so the filling isn't soupy. Fire-roasted diced tomatoes add nice smoky notes if you prefer.
• Tomato paste, 2 tablespoons: Concentrated tomato paste deepens the sauce and helps bind the filling.
• Salt and black pepper, 1/2 teaspoon each: Start with these measurements and adjust to taste after the filling warms through.
• Marinara sauce, 2 cups: Use your favorite jarred brand or homemade sauce; it thins the filling just enough to make it saucy without drippy mess.
• Shredded mozzarella, 1/2 cup: Add near the end to melt into a bubbling, golden topping. For a sharper finish, mix in a tablespoon of grated Parmesan.

Instructions

Brown the meat: Heat a medium skillet over medium-high heat and add the ground beef. Season with 1/2 teaspoon salt and 1/2 teaspoon black pepper. Cook for about 5 to 7 minutes, breaking the meat into small pieces until there is no pink remaining and some golden browning appears. Remove meat from the pan and drain any excess fat to keep the filling from becoming greasy. Sauté aromatics and tomatoes: Reduce heat to medium. Add the diced shallot and minced garlic to the clean skillet with a tablespoon of neutral oil if the pan is dry. Cook for 1 to 2 minutes until the shallot softens and the garlic turns fragrant and lightly golden — watch closely, garlic burns fast. Stir in the drained diced tomatoes and cook until they release some of their juices, about 1 minute. Build the sauce: Add 2 tablespoons tomato paste to the skillet and stir vigorously to combine with the aromatics and tomatoes, cooking for about 1 to 2 minutes to caramelize the paste slightly. Return the browned meat to the pan and pour in 2 cups marinara sauce. Bring the mixture to a gentle simmer, taste, and adjust seasoning with additional salt or pepper as needed. The filling should be cohesive and slightly saucy but not watery. Prep the peppers: Preheat your air fryer to 350°F. While it heats, slice the tops off the bell peppers and remove stems and seeds. If any peppers are unstable, trim a sliver from the base so they sit upright. Rinse inside and out and pat dry. Stuff and cook: Spoon the filling into each pepper, filling to near the top but leaving a little space for the cheese. Place the filled peppers upright in the air fryer basket, leaving space between them for air circulation. Cook at 350°F for 7 minutes to heat through and soften the peppers. Carefully open the basket, sprinkle about 1 to 2 tablespoons of shredded mozzarella on each pepper, then return to the air fryer for an additional 3 minutes until the cheese melts and bubbles. Keep an eye on the cheese if your heating element sits close to the basket top. Rest and serve: Remove peppers and let rest for 2 minutes — this helps the filling set and makes them easier to handle. Serve warm, garnished with chopped parsley or a little extra grated cheese if desired.

Storage Tips

Store leftovers in an airtight container in the refrigerator for up to 4 days. For freezer storage, wrap each stuffed pepper tightly in plastic wrap and place in a freezer-safe bag or container; they keep well for up to 3 months. When reheating, thaw overnight in the fridge if frozen, then reheat in the air fryer at 325°F for 6 to 8 minutes until warmed through, or microwave on medium power for 2 to 3 minutes, checking to avoid steam burns. Use oven-safe dishes for baking larger batches and cover loosely with foil to prevent excessive browning when reheating in an oven.

Ingredient Substitutions

If you want a lighter version, use 1 pound ground turkey or chicken. To make it vegetarian, substitute 1 pound plant-based crumbles or a mixture of cooked lentils and chopped mushrooms for a meaty texture; you may want to add an extra tablespoon of tomato paste to boost umami. For a gluten-free check, confirm the marinara brand is certified gluten-free. To stretch the filling for more servings, fold in 1 cup cooked rice, quinoa, or cooked orzo — this will increase carbohydrates but makes the dish more economical for larger households.

Serving Suggestions

Serve with a crisp green salad dressed in lemon vinaigrette, a side of buttered orzo, or crusty bread to sop up any extra sauce. Garnish with chopped fresh parsley, basil, or a sprinkle of crushed red pepper for heat. For a summer dinner, pair these with grilled corn and a light tomato-cucumber salad. For a cozy winter meal, serve with mashed potatoes or roasted root vegetables to create a heartier plate.

Cultural Background

Stuffed peppers are a widely loved dish with variations across many cuisines — from Mediterranean versions stuffed with rice, herbs, and lamb to Eastern European styles that include pork and tomato. The concept of stuffing vegetables is ancient: it’s a practical way to combine grains or proteins with seasonal produce. This Americanized version simplifies the technique for fast cooking with modern appliances while preserving the comforting flavors that make stuffed vegetables a global comfort food.

Seasonal Adaptations

In summer, use colorful peppers at their peak sweetness and swap in fresh tomatoes instead of canned for a brighter flavor. In cooler months, choose heartier peppers and consider adding cooked farro or barley to the filling for extra warmth. Holiday versions can include spices like smoked paprika or a splash of Worcestershire sauce for depth. You can also top with a mix of mozzarella and grated sharp cheddar to create a golden, festive crust.

Meal Prep Tips

To meal prep, make the filling ahead and store it in the fridge for up to 3 days. When ready to eat, fill peppers and air fry as directed — this reduces assembly time to under 10 minutes. Alternatively, prepare and assemble stuffed peppers in a baking dish, cover, and refrigerate; when needed, air fry individual servings or bake the whole dish in the oven at 375°F for 20 to 30 minutes. Label containers with reheating instructions so family members can reheat safely and consistently.

These air fryer stuffed peppers are a simple, adaptable meal that invites creativity while delivering reliable, comforting flavors. I hope you make them your own and enjoy the quick, satisfying results — they’re a small celebration in a colorful package.