Pizza Casserole - cooking recipe

Ingredients

1 (4 oz.) pkg. pepperoni, sliced
6 oz. pkg. spaghetti noodles
1/2 stick butter or margarine
2 (8 oz.) cans tomato sauce
1 (4 oz.) can sliced mushrooms, drained
1/2 tsp. basil
1/2 tsp. oregano
1 lb. lean ground beef
2 c. grated Mozzarella cheese
1 pkg. sliced Mozzarella cheese
1 medium onion, chopped
Parmesan cheese

Preparation

Boil pepperoni 5 minutes.
Drain on paper towels.
Cook and drain spaghetti.
Add butter and a generous amount of Parmesan cheese to spaghetti.
Cook onions and ground beef together; drain. Add tomato sauce and seasonings to meat; simmer, covered, for 20 minutes.
Add drained mushrooms to meat sauce after it simmers. Layer in 9 x 13-inch Pyrex dish in this order:
spaghetti, grated Mozzarella cheese, pepperoni, meat sauce and sliced Mozzarella cheese.
Bake, uncovered, at 350\u00b0 for 20 minutes.