Preheat oven to 350°F (175°C).

Sauté shallots and mushrooms in skillet with butter.

Coat muffin pan with olive oil spray or other oil and place ham slices in cups. You may want to cut a sliver in each ham slice to allow it to fold over itself when placed in the round muffin cup.

Cook for 15-16 minutes or until edge of ham is slightly crisp.