Step 1

In a small bowl whisk together olive oil, butter, garlic, soy sauce, honey, salt and pepper.

Step 2

Prepare portobello mushrooms by gently removing stem from the mushrooms. Using a spoon scrape out the gills. Set the mushrooms in a 9x13 inch pan. Add the marinade and soak for 10 minutes.

Step 3

Preheat the grill to medium high heat. Place the mushrooms on the grilled grill each side for 5 minutes. Remove from grill and put on a bun with favorite toppings.