When a customer pays with benefits and cash they are applied for the biggest exemption; at the deli, heated or combined food is prepared food while potato salad by the pound and bakery items without a utensil stay exempt (WAC 458-20-244(8)(b), RCW 82.08.0293(2)(c)).

Sal When a customer pays with benefits and cash, the cash and benefits are applied so the customer gets the biggest exemption. That puts the benefits on items like soda.
Sal At the deli, food the store heats, or mixes and sells as one item, is prepared food, and taxable. Potato salad sold by the pound, with no fork, isn't. Bread, muffins and cakes sold without a utensil stay exempt.