Easy Stuffed Peppers to Prepare in an Air Fryer

250 g ground beef, turkey or sausage

1/2 small onion, finely chopped

1 clove of garlic, chopped

125 ml tomato sauce or marinara sauce

1 teaspoon Italian seasoning

Salt and pepper

175–250 ml grated cheese, e.g. mozzarella, cheddar or a mixture