Preheat the oven to 375°F
Cut the tops off the green peppers and remove the seeds and membranes
Lightly oil a baking dish
Cook rice or prepare your preferred grain if using
Brown ground beef, turkey, or other filling meat in a skillet
Add chopped onion and garlic to the skillet and cook until softened
Stir in cooked rice, tomato sauce, salt, pepper, and any desired seasonings
Mix in shredded cheese if desired
Spoon the filling into the hollowed green peppers
Place the stuffed peppers upright in the baking dish
Add a little water or tomato sauce to the bottom of the dish
Cover with foil
Bake for 30 to 40 minutes
Remove the foil and top with more cheese if desired
Bake uncovered for 5 to 10 minutes until the peppers are tender and the cheese is melted
Let cool slightly before serving