8 ounces cremini mushrooms, sliced
8 ounces shiitake mushrooms, sliced
1 large onion, thinly sliced
6 cloves of garlic, minced
½ tablespoons safflower oil
2 tablespoons garlic steak sauce
2 tablespoons BBQ sauce
1 tablespoon Dijon mustard
Salt and pepper, to taste
4 sandwich buns
Heat the oil in a cast-iron pan over medium-high heat. Add the mushrooms and onions to the pan and sauté for 2 minutes. Turn the heat down to medium-low and stir in the garlic. Cook for 20-25 minutes or until the mushrooms and onions have caramelized, stirring occasionally.
In a small bowl, mix together the steak sauce, barbecue sauce and Dijon mustard. When the mushrooms and onions have caramelized add the steak sauce mixture and stir together.
Place ¼ of the mushrooms on a bun and top with your favorite slaw, if desired.