Savory Portobello Mushroom Burgers
Ingredients:
-
2 tablespoons olive oil
-
2 tablespoons balsamic vinegar
-
1 tablespoon Dijon mustard
-
2 cloves garlic, minced
-
½ teaspoon Worcestershire sauce
-
1 pinch salt and ground black pepper
-
4 large portobello mushrooms, stems removed
-
4 kaiser rolls, split