Mix Italian dressing and garlic into the ground beef.
Divide the meat mixture into the number of patties you desire. Shape the hamburger patty so it is about ¾ inch thick. Make an indention in the middle of the patty to prevent bulging in the center of the hamburger as it cooks.
Place the burgers on the grill. Cook 4-5 minutes on the first side. Flip the burgers over and cook an additional 4-5 minutes, until the burgers have reached the desired doneness.
If adding cheese, lay a slice of cheese on each burger patty about 1 minute before taking the burgers off the grill, so the cheese has a chance to melt.
Serve the burgers on hamburger buns with optional hamburger toppings.