Vegetarian dishes are common. Vegan dishes are a tiny bit more rare. - Pickle soup is a classic (use a recipe with fermented pickles, which are pretty easy to

Vegetarian dishes are common. Vegan dishes are a tiny bit more rare. - Pickle soup is a classic (use a recipe with fermented pickles, which are pretty easy to make at home, but larger grocers often also sell them refrigerated as a kosher product). Aside from the sour cream it's naturally vegan, and a vegan sour cream might work fine. - Borscht is a delicious beet soup. - Wild mushroom perogies are also pretty close, save for egg and sour cream in the dough. Vegan substitutes would definitely work there, else if you experiment a bit with the hydration a basic hot water and flour dough would be close. - Cabbage soup is similar to pickle soup in spirit (using sauerkraut, another lacto-fermented vegetable). - Placki Ziemniaczane (somewhat similar to US hash browns) is often served with mushroom sauce. Sometimes it'll have egg as a binder, but that's not essential for a very similar dish (replace it if you'd like, or add a bit more flour and water, or just leave it out). - Braised sauerkraut - Krupnik is a barley soup, often made with meat stocks, but vegetable stocks aren't bad either.