In a mixing bowl, combine ground chicken, garlic powder, onion powder, salt, and black pepper. Mix until well combined.

Form the mixture into 4 equal patties.

Preheat the grill to medium-high heat and brush with olive oil.

Place the chicken patties on the grill and cook for about 6-7 minutes on each side, or until the internal temperature reaches 165°F (75°C).

If using cheese, place a slice on each patty during the last minute of cooking to melt.

Toast the burger buns on the grill for about 1 minute.

Spread mayonnaise on the bottom half of each bun, add lettuce, a chicken patty, tomato slices, and top with the other half of the bun.