Summer is all about grilling in the backyard. These RITZ cracker Cheeseburger Bites are a tasty alternative to the grill when an unexpected rain shower rolls in. Cook ground beef in a small skillet and, once browned, add ketchup. Top one spoonful onto a RITZ cracker with a slice of sharp cheddar cheese. Serve these bite-sized (and mouthwatering) appetizers at your next get-together with family and friends! Life's Rich.