Slow Bone serves Texas barbecue with a cook's-eye attention to the whole tray. Smoky brisket, ribs, sausage, and fried chicken headline the counter, but the rotating vegetables, mac and cheese, cornbread, and other sides refuse to act like extras. The Irving Boulevard dining room is casual and quick-moving, open daily for a compact lunch window. It is an easy group stop when everyone wants a different plate and nobody wants ceremony between them and lunch.