makes 9 biscuits and 1 8×8-inch dish

For the Mushroom Mixture:

2 tablespoons olive oil

1 tablespoon unsalted butter

1 pound small cremini mushrooms, cleaned and cut into bite size chunks

1 medium purple onion, diced

2 cloves garlic, minced

1 1/2 teaspoon dried thyme

2 medium carrots, sliced

2 cups diced sweet potatoes

1 1/2 cups frozen peas

1/3 cup all-purpose flour

2 1/2 cups mushroom, vegetable, or chicken broth

salt and pepper to taste

2 teaspoons Worchestershire sauce

dash of balsamic vinegar (optional)

For the Biscuits:

2 1/2 cups all-purpose flour

1 tablespoon baking powder

1/4 teaspoon baking soda

1 teaspoon salt

2 teaspoons granulated sugar

1/2 to 1 teaspoon coarsely ground black pepper (depending on how spicy you like your biscuits)

1/4 cup chopped fresh chives

3/4 cup (1 1/2 sticks) unsalted butter, cold and cut into cubes

1 large egg

3/4 cup buttermilk, cold