Step 1

Preheat the oven to 350 degrees F.

Step 2

Wipe the mushrooms with a clean, damp cloth and trim stems.

Step 3

Slice the mushrooms into pieces no larger than 2 inches in size.

Step 4

Mix the olive oil with the garlic, herbs and seasonings in an ovenproof casserole dish large enough to fit all of the mushrooms.

Step 5

Add the mushrooms, and mix well, coating the mushrooms with the flavored oil.

Step 6

Bake for about 30 to 40 minutes, or until cooked through.

Step 7

Remove from the heat, and drizzle with the balsamic vinegar.