Heat oven to 375 degrees. Cook spinach according to package directions with ... set aside. Cook manicotti in boiling water 4 minutes; ... 25 to 30 minutes.
Cook shells. Mix remaining ingredients ... Fill shells with spinach mixture and arrange in greased ... tomato sauce over manicotti, sprinkle with Mozzarella cheese. ... degrees for 25 minutes.
Heat oven to 350 degrees. Cook spinach according to directions with onion ... set aside. Cook manicotti, spread 1/2 spaghetti sauce ... minutes or until bubbly.