Lasagna - cooking recipe

Ingredients

1 onion
2 lb. ground beef
1 can spaghetti sauce
1 bag Cheddar cheese
1 bag Mozzarella cheese
1 box noodles

Preparation

Cook ground beef.
Mix the spaghetti sauce and onion together. In a 9 x 18-inch pan, layer the noodles, meat and cheeses until pan is full.
Cook for 20 minutes in oven at 350\u00b0.