Start with 80/20 Lean Ground Beef (1 pound) and mixed in Monterey Jack Cheese (to taste) and Bacon (to taste). I turned this meat into 2 big patties and seasoned it with my Killer Hogs The A.P. Rub (to taste).
Take Portabella Mushroom Cap (2) and drizzle a little Olive Oil (to taste) on top and season with AP Seasoning. I put both the burgers and the portabella mushrooms on the hot Char-Broil Kettleman.
After 3 minutes, I flipped the mushroom caps and added more olive oil and AP seasoning to the other side. After 3 additional minutes, I added cheese to the tops of the Portabella mushrooms and allowed it to melt on the Char-Broil Kettleman.
After a total of 8 minutes I flipped my burger and placed the portabella mushroom on top – cheese side down.
Once the burger has grilled for a total of 16 minutes, it is time to assemble this Grilled Portabella Burger. Start with Hamburger Bun (2) then add the Mayonnaise (to taste), Lettuce Leaf (2), Tomato (2) and top with grilled portabella burgers.