Preheat the grill to medium-high heat
Clean and oil the grates
Form burger patties about 3/4 inch thick
Make a small indentation 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 the burgers once
Grill for another 3 to 5 minutes for medium doneness
Add cheese during the last minute if desired
Check for desired doneness with a thermometer if needed
Remove burgers from the grill
Let them rest for a few minutes
Toast the buns on the grill if desired
Assemble with toppings and serve