Prep the pan: Preheat oven to 400 degrees F. Line a rimmed baking sheet with foil or parchment paper. Set aside. Prep the mushrooms: Brush dirt off the mushrooms with a damp paper towel. Remove ...

4 Portobello caps ... Remove mushroom caps from oven and fill with stuffing. Bake an additional 15 minutes or until mushrooms are tender and cheese is melted. Allow to cool before serving.