Knysza is a thick, semicircular bread roll filled with various ingredients, drenched in garlic sauce, mayonnaise sauce, or hot sauce, and topped with roasted onions. A typical Polish street food, it is found in a vegetarian, meat, and cheese version.
Vegetarian knysza is slathered with sauce and filled with vegetables, usually cabbage, cucumbers, tomatoes, lettuce, canned corn, pickled cucumbers, and the mandatory roasted onions. The meat version is the same as the vegetarian with the addition of sausages, pork or chicken chops, salmon, or tuna fish, while the cheese version consists of vegetarian knysza with grated cheese.