1 pkg. Kluski noodles
1 medium onion, chopped
28 oz. spaghetti sauce
8 oz. Mozzarella cheese
1 1/2 lb. ground beef
14 oz. pizza sauce
1 jar sliced mushrooms (optional)
8 oz. shredded Cheddar cheese
1 pkg. sliced pepperoni

Cook and drain noodles according to the directions. Brown ground beef and onions. Drain fat. Add the sauces and optional ingredients to the meat and simmer. Layer in 9 x 13 pan twice the noodles, meat sauce, Cheddar cheese, Mozzarella cheese and pepperoni.

Bake at 350°F for 20 minutes.

Can be put in crock-pot and cooked on low for 2 hours or until cheese melts.