Lasagna - cooking recipe

Ingredients

1 lb. ground beef
1 c. chopped onions
2 tsp. salt
2 (15 1/2 oz.) jars Ragu spaghetti sauce
12 oz. pkg. lasagna noodles
1 1/2 c. Ricotta cheese
1 1/2 c. Parmesan cheese
2 1/2 c. Mozzarella cheese
2 c. Provolone cheese

Preparation

Preheat oven to 350\u00b0.
Brown ground beef, onions and salt until light brown.
Drain.
Add spaghetti sauce.
Simmer 15 minutes.
Add 1/2 cup Parmesan cheese to Ragu mixture.
Cook lasagna noodles according to directions.
Drain.
Layer in greased large shallow baking dish as follows: noodles, sauce, Ricotta cheese, Mozzarella cheese and Provolone cheese.
Layer again, ending with all cheeses and Parmesan cheese on top.
Bake at 350\u00b0 for about 45 minutes, until bubbly all over.
Let cool 10 minutes to firm up before cutting.