Melt the butter over medium-low heat in a small skillet. Add the garlic and stir. Keep warm until ready to use, stirring often.
For the burgers
Fire up your grill for direct cooking.
Brush some of the garlic butter mixture onto the sliced sides of the buns and toast on the grill.
Place the ground beef in a large bowl. Sprinkle with the seasoning. Using your hands combine the seasoning and meat. Form into 8 small equally-sized balls.
Add meat to the grill. Push down with a spatula to flatten into patties.
Season the tops of the burgers with a small pinch of garlic salt. Cook 4-5 minutes per side, flipping once, or until the desired doneness is achieved.
Brush burger patties with any additional garlic butter and top with cheese. Let melt slightly.