Step 1

Preheat oven to 400 degrees F. Place mushrooms in a 13x9-inch baking pan. Stir garlic slices into the mushrooms.

Step 2

Drizzle the mushroom mixture with oil, Worcestershire sauce, and balsamic vinegar. Sprinkle with oregano, salt, and pepper. Toss gently to coat.

Step 3

Roast, uncovered, for 20 to 25 minutes or until the mushrooms are tender, stirring twice. Stir in parsley just before serving.