From their website (9/24/16):
Culver’s restaurants contain common allergens and our dishes are prepared to order; however, normal kitchen operations involve shared cooking and preparation areas and we cannot guarantee any menu item will be free of allergens. Items cooked in the fryers may come into contact with egg, milk, wheat/gluten, soy, fish and shrimp. Culver’s ground beef is 100% beef, and it is cooked on a grill with bread.
No