1. Preheat the grill to medium-high heat.

2. In a large bowl, combine the hamburger, boneless chicken, diced onion, salt, pepper, garlic powder, and onion powder. Mix well.

3. Form the mixture into patties and place them on the grill. Cook for 6-8 minutes per side or until cooked through.

4. During the last minute of cooking, top each patty with a slice of cheddar cheese and allow it to melt.

5. While the patties are cooking, toast the burger buns on the grill or in a toaster oven.

6. Serve the patties on the toasted buns with your favorite toppings.