i need some easy quick recipes for stuffed peppers plz?

I need easy and sort of quick please thanks

1 pound ground beef 1 onion, chopped 2 cups cooked Rice (medium grain preferred) 5 medium,round green peppers 3 cups spaghetti sauce shredded mozzarellacheese Cut off tops of green peppers and clean seeds outBoil in large pot for 5-10 minutes, or until peppers are a dull green, if desired Brown beef with onionAdd rice and 2 cups of spaghetti sauceFill peppers with meat/rice mixturePour remaining cup of spaghetti sauce over peppersCover with aluminum foil and bake in a preheated 375°F for 25 minutes or until peppers are tenderRemove foil and sprinkle with grated mozzarella cheeseBake for another 10 minutes, uncovered, or until cheese is melted and bubbly.