vegetarians who also are wine lovers will fall in with love proof , the first of a trio of first-class sister restaurants that also include estadio and doi moi (read my write-ups of the those two here and here ). proof is a romantic wine bar located in dc's penn quarter/chinatown neighborhood. the dinner menu changes seasonally, but as noted on the washington, dc restaurants page of this website, it always offers a number of hearty meat-free appetizers, salads, and cheese plates, in addition to several tasty side dishes. fortunately for me, my favorite vegetarian entree -- the napoleon of crispy tofu, wild mushrooms, and spring vegetables -- is a year-round staple . napoleon of crispy tofu, wild mushrooms, and spring vegetables, including baby bok choy, snow peas, green beans, and served with a sweet chili garlic sauce