Step 1

Preheat your griddle over medium-high heat.

Step 2

Gently form your patties. This makes 6 - 1/2 pound patties, or 12 - 1/4 pound patties if you want double cheeseburgers. Season all the patties on both sides with your SPG.

Step 3

Put the seasoned patties onto your preheated griddle. Next add the butter to another part of the griddle and put your sliced mushrooms down in a single layer. Brown the mushrooms on both sides, and then scootch them into a pile.

Step 4

Flip the burgers once they have developed a nice crust on the one side. Let brown and finish cooking on the second side. Top with cheese.

Step 5

Add the garlic to the mushrooms and and sauté. Finish the mushrooms by adding the worcestershire and A1 and stirring. Add the mushrooms on top of the cheese.

Step 6

Top the mushrooms with another slice of swiss cheese, and turn the griddle down to low. Cover, and let the cheese melt over the mushrooms.

Step 7

Toast the buns while all this is happening by spreading on a light coat of mayo and then toasting on the griddle.

Step 8

Serve hot.