Hearty yet simple recipe! Tender chunks of beef, baby bellas, and carrots in a rich brown gravy simmered with Guinness Extra Stout and red wine, topped with a flaky puff pastry and baked to golden perfection. Heavenly! This is hearty British comfort fare at it's finest! Note: The stew can be made in advance and it actually tastes better the next day. Just reheat before placing it in a casserole and topping with the puff pastry. It can be baked and served in individual casseroles or made in one large one. Adapted from 2 Stews. Serve with mounds of fluffy mashed potatoes and peas and carrots on the side.