CHICAGO, ILLINOIS. Groceries behind bulletproof glass at We Serve Food Mart at 10857 S. Halsted in the Roseland neighborhood on January 2, 2015. At the We Serve Food Mart, a gallon of milk costs $3.49, a carton of eggs costs $1.49, a can of tuna costs $1.49 and a load of bread costs $1.25 and ground beef was unavailable at the time.