Easy Slow Roasted Beef Tenderloin
6 cup assorted mushrooms, such as chanterelle, portobello, shiitake, and oyster 3 tablespoon olive oil 2 tablespoon lemon juice 1 teaspoon reduced-sodium soy sauce Horseradish Cream 1 8 ounce carton dairy sour cream 2 tablespoon prepared horseradish ⅛ teaspoon salt ⅛ teaspoon ground black pepper