Prep the peppers: Slice off the tops, remove seeds and membranes, and trim the bottoms if needed so they stand upright. Brush the outsides lightly with olive oil.
Pre-cook the peppers: Air fry the empty peppers at 360°F (182°C) for 5–7 minutes until slightly softened. Set aside.
This step keeps them from staying too firm later.
Sauté the aromatics: In a skillet over medium heat, warm 1 tablespoon olive oil. Add onion and cook 3–4 minutes until translucent. Stir in garlic for 30 seconds until fragrant.
Cook the meat: Add ground meat, season with salt and pepper, and cook until browned, breaking it up as it cooks.
Drain excess fat if needed.
Build the filling: Stir in tomato sauce, Worcestershire (if using), Italian seasoning, and smoked paprika. Simmer 2–3 minutes to marry flavors. Fold in cooked rice and 1/2 cup of the shredded cheese.
Taste and adjust seasoning.
Stuff the peppers: Spoon the filling into each pepper, gently pressing to pack it in. Mound slightly over the top.
Air fry to finish: Arrange stuffed peppers in the basket so they don’t touch. Air fry at 360°F (182°C) for 8–10 minutes until hot in the center.
Add cheese and melt: Sprinkle the remaining cheese over the tops.
Air fry 2–3 more minutes until melted and bubbly with a few golden spots.
Garnish and serve: Let rest 3–5 minutes. Finish with chopped parsley or basil. Serve as-is or with a side salad or garlic bread.