Heat oven to 350° .
Cook spaghetti as directed. No salt. Mix eggs, ricotta cheese, Alfredo sause, Italian blend cheese and 1/2 cup Parmesan cheese. Blend well.
Drain spaghetti. Add cheese mixture, toss to coat. Place in 13x9 baking dish . Spray lightly. Cover.
Bake 30 min. Remove from oven. Let stand 10 min. Meanwhile heat up sause.
Serve spaghetti topped with sause and remaining Parmesan.