Preheat the gas grill to medium-high heat
Clean and oil the grill grates
Form hamburger patties about 3/4 inch thick
Make a small dimple in the center of each patty
Season both sides with salt and pepper
Place patties on the hot grill
Grill for 3 to 5 minutes on the first side
Flip once and grill for 3 to 5 minutes on the second side
Add cheese during the last minute if desired
Check for doneness with a meat thermometer
Remove burgers from the grill
Let burgers rest for a few minutes
Toast buns on the grill if desired
Assemble with toppings and serve