Pizza casserole

1 lb hamburger
1 15 oz jar spaghetti sauce
8 oz mozzarella cheese
1 med onion
green pepper
mushrooms
pepperoni
2 eggs
1 c milk
1 c flour
1 T oil

Brown hamburger with diced onions. Place mixture in greased 9 x 13 inch dish. Pour spaghetti sauce over hamburger; add layer of green diced peppers, then mushrooms and pepperoni. Spread shredded mozzarella cheese over dish. Beat eggs, milk, oil, and flour in bowl, mixing well. Pour over dish and sprinkle with Parmesan cheese. Bake at 400 for 35 min.