Wipe mushrooms clean with a damp cloth.
Combine mushrooms and next 3 ingredients in a large zip-top plastic bag. Seal; toss to coat well. Marinate in refrigerator 2 hours.
Place mushrooms on a baking sheet coated with cooking spray. Broil 5 1/2 inches from heat 10 minutes.
Drizzle mushrooms with olive oil, and sprinkle with parsley. Serve warm.