Easy Lasagna
Stir in tomato sauce, tomato paste, the water, Italian seasoning, and pepper. Bring to boiling; reduce heat. Cover and simmer for 10 minutes, stirring occasionally. Meanwhile, cook lasagna noodles according to package directions. Drain the noodles; rinse with cold water. Drain well; set aside. Lightly coat a 2-quart rectangular baking dish with cooking spray. For cheese filling, stir together the egg and ricotta (or cottage) cheese in a small bowl....