This coupon has expired $0.50 for White Castle Frozen Sliders. Offer available at multiple stores. expires on 03/31/21 Other coupons you may be interested in $1.00 for Jarritos (expiring on Monday, 01/02/2023). Offer available at multiple stores. $1.00 for Sangria Senorial (expiring on Monday, 01/02/2023). Offer available at multiple stores.