Spaghetti Casserole - cooking recipe

Ingredients

1/2 to 1 lb. ground beef
1 medium onion
1 large jar spaghetti sauce
cooked spaghetti (5 to 6 people)
2 c. pkg. Mozzarella cheese, shredded
1 pkg. pepperoni

Preparation

Brown onion in skillet.
Add ground beef; drain fat.
Add sauce and simmer 25 to 30 minutes.
Cook spaghetti and drain.
Put spaghetti/sauce in 9 x 12-inch baking dish.
Top with pepperoni and cheese.
Bake at 400\u00b0 for 10 to 12 minutes, until cheese melts.