In a large bowl, combine 1½ cups mozzarella, Parmesan, and cottage cheese, along with the spinach, garlic, Italian herb seasoning, red pepper and salt/pepper to taste.
Spray 13 x 9 baking dish with cooking spray. Pour ½ of the sauce in the baking dish.
Fill the manicotti noodles* with filling mixture until full, about 3 tablespoons.
Pour the remaining sauce over the noodles, making sure the noodles are covered.
Slowly pour ½ cup water around the perimeter of baking dish. Sprinkle remaining ½ cup mozzarella cheese on top. Cover with nonstick foil (or spray foil with cooking spray) and bake for 1 hour. Let sit uncovered for 10 minutes and serve.
Notes
Filling tips: Put filling in a ziploc bag, cut off a corner and fill shells OR I have found an iced tea spoon is the perfect size for spooning the filling in the shells.
Nutrition Information
Serving size: 2 shells
Recipe by Alida's Kitchen at https://www.alidaskitchen.com/2012/09/05/easy-meatless-manicotti/