Lasagna - cooking recipe

Ingredients

1 onion, chopped
1 clove garlic, chopped
1 lb. hamburger
1 (4 oz.) can mushrooms
1 (8 oz.) can tomato sauce
1 (6 oz.) can tomato paste
1 tsp. oregano
3/4 c. water
1 box chopped spinach
1 egg
1 (8 oz.) sour cream
1/3 c. Parmesan cheese
salt
oil
1 box lasagna noodles
Mozzarella cheese

Preparation

Brown together onion, garlic and 1 tablespoon oil.
Add hamburger and 1/2 teaspoon salt.
Stir until completely cooked. Add mushrooms, tomato sauce, tomato paste, oregano and water. Simmer together for 45 minutes or longer.