2Mix the mushrooms, garlic, and onion together. And put on two of the burgers piling it high, and top with the other two burgers and seal the edges. Grill or fry as usual.
3For the corn.
Shuck corn and place in a pot of water. bring to boil and turn off the heat. leave in the boiling water off the heat while the burgers cook. Corn will be perfect. Remember the finger nail test before buying the corn. If it doesn't squirt back at you do not buy it. It is old corn.