Mix The Ground Turkey, Egg, Black Beans, Red Bell Pepper, Mozzarella Cheese, Garlic Powder, Salt, And Black Pepper Together In A Bowl Until Blended; Form The Mixture Into 4 Patties. Heat A Large Skillet Over Medium Heat; Cook The Turkey Patties In The Skillet Until Cooked Through And No Longer Pink The Center, 7 To 10 Minutes Per Side. An Instant-Read Meat Thermometer Inserted Into The Center Of A Patty Should Read At Least 160 Degrees F (70 Degrees C).