White Castle offers a free Original Slider Combo Meal, which includes sliders, fries, and a drink, for new members who sign up for Craver Nation via the White Castle app. The offer is valid at participating locations except White Castle Orlando. By joining Craver Nation, members also receive deals and coupon savings.

White Castle offers a variety of combo meals that include their famous sliders, sides, and a drink. These combos are designed to provide a satisfying and convenient meal option for customers.