Stuffed Jumbo Shells

1 pound ground beef
2/3 cup chopped onion
2 cups water
2 cans (6oz. each) tomato paste
1 TBS. beef or chicken bouillon granules or cubes
1-1/2 tsp. dried oregano
1 carton (15 oz.) cottage cheese or ricotta cheese
2 cups (8oz.) shredded mozzarella cheese, divided
1/2 cup grated Parmesan cheese
1 egg, beaten
24 jumbo pasta shells, cooked and drained

1. In a large skillet, cook beef and onion over medium heat until done, drain. Stir in water, tomato paste, bouillon and oregano. Cover and simmer for 30 minutes. (If you don't have the time, cook beef and onion then add 1 can of your favorite spaghetti sauce.)
2. Meanwhile, in a bowl, combine the cottage cheese (or ricotta), 1 cup mozzarella, Parmesan cheese and egg; mix well.
3. Spray a 3 quart baking dish with nonstick spray. Stuff shells with cheese mixture and arrange in prepared dish. Spoon meat sauce over shells.
4. Cover and bake at 350 ℉ for 30 minutes. Uncover; sprinkle with remaining mozzarella cheese. Bake 3-5 minutes longer or until cheese is melted.
5. Make 6-8 servings.