NuVegan is really good, it’s vegan soul food. There are vegetarian option at El Sol (11th and M NW). The roost is a food hall on Penn Ave SE and the taco place there has fried avocado tacos to die for! If you want something fancier, Ocean Prime has a good veggie menu. Falafel Inc at the wharf is great, and the most modestly priced food at the wharf ($4-$7 “entrees”). Rasika has good vegetarian options as well.