Divide mixture into quarters; with wet hands, gently press to form 4 patties.
Place on greased grill over medium-high heat; close lid and grill, turning once, until instant-read thermometer inserted sideways into patties reads 165 degrees F (74 degrees C), 10 to 12 minutes.
Additional information: Test Kitchen Tip
Gentle Flipping: Chicken, turkey and fish burgers can all be a little more delicate and crumbly than beef and pork burgers. To flip them on the grill without breaking them, use one spatula over and one spatula under to support each patty as you turn it.