Mushroom Pot Pie with Black Truffle Oil Mixed Scallion Drop Biscuits

ngredients For the filling: 2 Tbsp. Black Truffle Oil – Profine Food Stores olive oil 6 Tbsp. (3/4 stick) unsalted butter, divided 1 3 mixed mushrooms, torn or sliced, divided White Truffle Salt – PROFINE FOOD STORES and freshly ground black pepper 1 medium yellow onion, chopped…