Ricotta Cheese Filling January 25, 2014 by Ricotta Cheese Filling Print recipe Print with all photos Print text only Ingredients 1 Pound Ricotta Cheese 1/4 Cup Mozzarella (shredded) 1/4 Cup Parmesan (grated) 1/4 Cup Spinach (finely chopped) 1 Large Egg 1/2 Teaspoon Salt Directions Place all ingredients in a medium bowl. Mix all ingredients together. Before using store in an airtight container in the refrigerator for at least one hour.