Preheat oven to 375.

Wipe a large rimmed sheet pan with oil, or cooking spray or just use parchment for easy clean up.

Clean mushrooms of visible dirt with a damp paper towel. Slice into slices or quarters and leave some whole.

In a large bowl or ziplock bag toss mushrooms with olive oil, salt and pepper.

Place on sheet pan in a single layer and place in oven. Bake for 15 minutes and then drain any mushroom water that may have accumulated. Toss and continue roasting for 15 to 20 minutes or until golden and crispy.

Remove from oven and toss with butter or truffle oil and lots of fresh herbs for extra flavor. Check for seasoning and add more salt and pepper if needed.