1 1/2 lb. hamburger & 1 med. onion (brown)
8 oz. spaghetti noodles, cook & drain
32 oz. Prego spaghetti sauce
1/2 lb. mozzarella cheese
1/2 lb. American or Cheddar cheese

While hamburger and onion are browning, grate your cheeses and cook noodles. When the hamburger is done, drain and add spaghetti sauce. Simmer for a few minutes. Drain noodles.

Layer (in an 8 x 11 inch non metalic dish for microwave or 9 x 13 inch cake pan for oven), 1/3 of noodles, 1/3 of the meat/sauce mixture and 1/3 of the (both) cheeses. Repeat layering 2 more times. Cover with saran or foil. Cook 20 minutes on high in microwave or 45 minutes at 350 degrees in oven.