In this fun recipe juicy burgers are filled with a tomato and pepperoni mixture, then topped with melted cheese. Yum. This is a great way to add interest to plain old burgers, which can get boring after a while. Before getting started, be sure that you know all of the tips and tricks for making the best burgers. You could use ground chicken or ground turkey in place of the ground beef if you'd like. If you do that, add about 1/2 cup of soft bread crumbs soaked in 2 tablespoons of milk or water to add some moisture to the meat. Make sure that you cook ground chicken or turkey, in fact, all ground meat, to a minimum temperature of 165 f as checked with a food thermometer. Use kaiser rolls or ciabatta rolls or other sturdy rolls for these burgers. Soft white hamburger buns just won't stand up to the meat and all the cheese and fillings. Enjoy these burgers with a green salad or a fruit salad and some cold iced tea.