Mix together ricotta cheese, spinach, 1/2 of the mozzarella cheese and eggs.
Spread 1/2 container pasta sauce in 13 X 9 X 2 inch baking dish. Top with 3 lasagna noodles, 1/2 container pasta sauce and half the spinach mixture. Repeat layers. Top with last 3 lasagna noodes and remaining pasta sauce. Slowly pour water around inside edges of baking dish. Cover with foil.
Bake at 400 degrees F for 50 minutes. Uncover. Sprinkle with remaining mozzarella cheese. Bake 10 minutes or until hot and cheese is melted. Let stand 10 minutes.