Prepare burger seasoning by combining the salt, black pepper, onion salt, and garlic salt together in a small bowl.
Prepare the garlic butter by melting together the butter and adding the two teaspoons of minced garlic in a small saucepan. Heat melted butter for 3 to 5 minutes or until the garlic butter becomes fragrant.
Brush the garlic butter onto the buns, and place the buns on the skillet to toast. Toast the buns long enough so the bread begins to brown.
Brush a small amount of the butter on top of the ground beef and then sprinkle some garlic salt on top.
Heat the grill or skillet to medium-high heat.
Place the ground beef balls on the heated surface and use a spatula to press the burgers into thin patties.
Season patties with the salt mixture.
When the burgers have cooked on one side, flip them over and add a slice of cheese to each patty.
Stack half of the burger patties on top of the other. Place the patties onto the buns. Dress the burgers as you desire.