Lasagna - cooking recipe

Ingredients

1 lb. ground beef, browned
2 cans tomatoes
1 can tomato sauce
1 can tomato paste
2 bay leaves (remove from sauce before serving)
1 tsp. oregano
salt and pepper to taste
1 (12 oz.) container Ricotta cheese
3 c. Mozzarella cheese
1/2 c. Parmesan cheese
1 egg
12 lasagna noodles

Preparation

Sauce:
Add tomatoes, tomato sauce, tomato paste, bay leaves, oregeno, salt and pepper to ground beef.
Bring to boil; reduce heat and simmer 30 minutes.
Add Parmesan cheese to sauce and simmer.