Preheat the oven to 400 degrees.
Spray the baking dish with cooking spray and set aside.
Toss the mushrooms with the olive oil, salt, and pepper. Place in the baking dish and roast for 20 minutes stirring once in the middle.
Meanwhile, cook the butter in a small saute pan over medium heat until melted.
Add in the garlic, herbs, and lemon juice and heat for one minute.
Pour the butter mixture over top of the mushrooms and continue cooking for 10 minutes.
Season with salt and pepper and serve.