Lasagna - cooking recipe

Ingredients

1 1/2 lb. hamburger
1 onion, chopped
salt
1 large jar spaghetti sauce
mushrooms (optional)
1 tsp. oregano
6 or 7 lasagna noodles

Preparation

Brown hamburger, onion and salt together; drain. Combine with the spaghetti sauce. Add mushrooms, if desired. Add the oregano. Let simmer.
Cook the lasagna noodles and drain.
In a large baking dish, layer noodles and add sauce until all is used.
Cover with shredded Mozzarella cheese.
Bake at 350\u00b0 for approximately 30 minutes.