Italian Shells Casserole - cooking recipe

Ingredients

1 lb. box medium-sized shell pasta
1 lb. ground beef
1/2 tsp. salt
1/4 tsp. pepper
1 can marinara sauce
1 c. sour cream
1 large bag Mozzarella cheese, shredded
1 small bag Provolone cheese, shredded

Preparation

Cook shells (al dente).
Rinse, drain and set aside.
Brown ground beef and drain.
Add salt and pepper and stir in marinara sauce.
Simmer 20 minutes.
In a buttered 9 x 13-inch casserole, layer 1/2 the shells, 1/2 the sauce, 1/2 the sour cream and 1/2 of each bag of cheese.
Repeat layers.
Cover and bake at 350\u00b0 for 40 minutes.
Uncover and bake 20 minutes more.