Spinach Cheese Manicotti Recipe - Allrecipes.com: Whitney's Review: Great recipe, though next time I will definitely double the garlic, onion, and add 1/2 tsp. salt, pepper, and italian seasoning. Otherwise, yummy! I only used 1 jar of spaghetti sauce and 1/2 of the water called for. Used 1 c. mozza and added about 1 TB chopped basil.