Clean Mushrooms, allow to drain.
Pressure Cooker to Sauté/Fry
Add Olive Oil, Garlic, Mushrooms.
Sauté, moving mushrooms, and garlic around.
Add in butter pieces
Turn Off & add in Bread crumbs and Parmesan.
Cover, Lock, Turn On and choose STEAM for 2 minutes.
Immediately De-Pressure
Serve warm with toothpicks.