Everything about the Oak Cliff location of Spiral Diner makes it seem like a regular greasy spoon. The tables, chairs and decor recall burgers-and-fries diners from the '50s. What makes this place the best diner, though? The food. Only a few bites into almost anything on its menu, and you're in a better place. You don't have to disavow meat to appreciate how great the food tastes at this vegan-only diner. Whether you're munching a Nachos Supremo, The Mitch Tofu Club or Viva Las Migas, the flavor is tremendous. The cakes and pies are unreal, too. Think of it as a vegan restaurant for people who don't normally like vegan food. Simple in approach, but it, along with its Fort Worth location, makes for one of the best places to eat in DFW.