Heat the oil in a large skillet over medium-high heat. Add the shallots
and garlic, and cook, stirring, until fragrant, about 1 minute. Add the mushrooms, salt, and pepper, and cook, stirring, until softened and the mushrooms are tender and release their liquid, about 5 to 6 minutes. Add the butter and cook, stirring, for 1 minute.
Remove from the heat and serve immediately.
Yield: 4 servings