HEAT oven to 350°F.
MIX eggs, cottage cheese, spinach, 2 cups mozzarella and 1/4 cup Parmesan.
LAYER 1 cup spaghetti sauce, 3 lasagna noodles and half the cottage cheese mixture in 13x9-inch baking dish. Repeat layers. Top with remaining noodles, sauce and cheeses.
BAKE 45 min. or until heated through. Let stand 10 min. before serving.