Preheat the grill to medium-high heat. Remove burger patties from the freezer.
Separate the patties and remove the papers.
Place the frozen patties on the grill and cook for about 15 minutes, flipping every 5 minutes (or until the burgers are cooked through to an internal temperature of 160°F). If they were not seasoned, you can season them with some salt and pepper once they start to thaw on the grill. If you are adding cheese slices, add them during the last few minutes.
Remove the burgers from the grill and toast the buns lightly, if desired. It should take only 1 to 2 minutes. Add the patties to the hamburger buns with toppings and condiments of your choice. Serve!
Notes
The nutrition information is for 1 standard burger patty, so keep in mind that this will vary.
Keep an eye on the burgers for flare ups. If they are flaring up too much, lower the heat a little.