Italian Stuffed Shells - cooking recipe

Ingredients

1 lb. ground beef
1 c. chopped onion
1 qt. spaghetti sauce
1 (16 oz.) carton cottage cheese
2 c. (8 oz.) shredded Mozzarella cheese, divided
1/2 c. grated Parmesan cheese
1 egg, beaten
24 jumbo shell noodles, cooked and drained

Preparation

In a large skillet, brown beef and onion. Drain well. Stir in spaghetti sauce.
Simmer, uncovered, about 30 minutes.