In large bowl, mix cottage cheese, 1 cup mozzarella cheese, egg, spinach, salt, oregano and pepper. In a greased 9x13" baking pan, layer 1/2 cup spaghetti sauce, 1/3 of noodles, and 1/2 of cheese mixture. Repeat. Top w/ remaining noodles. Sprinkle remaining mozzarella cheese. Pour water around edges of baking dish. Cover dish tightly with foil. Bake for 1 hour and 15 minutes or until bubbly at 350°F. Let stand 15 minutes before serving.
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