In a large skillet, cook the beef, sausage, onion and green pepper over medium heat until meat is no longer pink; drain. Set aside 1 cup spaghetti sauce; stir remaining sauce into meat mixture. Bring to a boil. Reduce heat; simmer, uncovered, for 8-10 minutes or until thickened.
In a small saucepan, melt cream cheese over medium heat. Remove from the heat. Stir in the cottage cheese, egg and parsley.
Spread meat sauce into a 13x9-in. baking dish coated with cooking spray. Top with 3 noodles, Italian cheese blend, 1-1/2 teaspoons Italian seasoning and cream cheese mixture. Layer with remaining noodles and reserved spaghetti sauce; sprinkle with mozzarella and remaining Italian seasoning.
Cover and bake at 350° for 35 minutes. Bake, uncovered, for 10-15 minutes or until bubbly. Let stand for 15 minutes before cutting.