Place the bacon in a large, deep skillet and cook over medium-high heat, turning occasionally, until crisp and evenly browned, about 10 minutes. Drain the bacon slices on a paper towel-lined plate; crumble the drained bacon into a bowl. Stir in the cream cheese, 2 tablespoons Parmesan cheese, Worcestershire sauce, and pepper until evenly mixed. Spoon the filling into the mushroom caps and place into an 8x8-inch baking dish. Sprinkle with the remaining 2 tablespoons of Parmesan cheese.
Bake in the preheated oven until the mushrooms are tender and the filling is golden brown, 25 to 30 minutes.
recipepes.comthe best stuffed mushrooms, Stuffed Mushrooms recipePT15MPT1H5455 calories