Pizza Casserole - cooking recipe

Ingredients

4 oz. pkg. sliced pepperoni
1/3 c. melted oleo
4 oz. grated Swiss cheese
2 (8 oz.) cans tomato sauce
1/2 tsp. oregano
1 medium onion, chopped fine
6 oz. thin spaghetti, cooked (10 minutes)
1 lb. Mozzarella cheese, sliced thin or grated
4 oz. mushrooms, drained
1/2 tsp. basil

Preparation

Boil pepperoni 5 minutes.
Drain well.
Saute onion in 1 1/3 tablespoons of oleo.
Preheat oven to 350\u00b0.
Pour rest of oleo into 11 x 7 x 2-inch baking dish.
Toss spaghetti in oleo and add one can tomato sauce.
Toss again.
Add in order:
1/2 grated cheese, 1/2 pepperoni, 1/2 Mozzarella cheese, all mushrooms and all onion. Then sprinkle with oregano and basil.
Add rest of sauce, grated cheese, pepperoni and Mozzarella cheese.
Bake 20 to 25 minutes.