Roasted Mushrooms with Garlic Oil

Toss large, fresh mushrooms caps (shiitake preferred but I've used all kinds) with a generous amout of garlic oil, sea salt , and fresh ground pepper.  Put them in one layer on a sturdy sheet pan or caste-iron skillet and roast at 450 F in oven for 10 minutes, or golden all over, slightly crispy on the edges, but still juicy inside.