The $30 Fill Up is mostly the same as the $20 Fill Up (Eight pieces of fried chicken or 12 tenders, a large coleslaw, two large mashed potatoes and gravy, and four biscuits) but with either 12 additional Extra Crispy chicken tenders or eight pieces of fried chicken for the extra $10.
By including enough food for two meals, the $30 Fill Up is meant to save you from having to make another trip out for food or from having to cook a meal.
Photo via KFC.