RITZ Cheesy Meatballs are sure to be the hit of the block party! This crowd-pleasing recipe features everyone's favorite pizza toppings. Instructions: Place mozzarella cheese slices on crackers. Top cheese slices w/ spaghetti sauce. Cut meatballs in half & place the cut side down on crackers. Top w/ spaghetti sauce & fresh parsley. Try it also w/ pesto & provolone.