Virtual Sefer Tina's Pizza Hotdish

1 1/2 lb hamburger, browned
1- 10 1/2 oz can pizza sauce
1 box rigatoni or penne pasta, cooked
3- 8oz cans of tomato sauce
1 c. milk
8 oz grated mozzarella cheese
1 tsp minced onion
1 pepperoni, sliced
Mix all together and bake at 350* for an hour.