It’s a good time to be a downtown vegetarian: this week Superiority Burger snagged two stars from the Times and next weekend, kale cravers can take part in that most hallowed of New York rituals: fancy brunch. Naturally, leading this bacon-less charge is Dirt Candy, the veg-centric restaurant (also two-starred) that in February moved to the Lower East Side from the East Village nook that, it so happens, now houses Superiority Burger.