If you like subs & pizza try GROTTO PIZZA. Grandma lives in Rehoboth and when we visit we MUST have at least one meal there. We also bring home a few of their frozen pizzas. Crystals, is great for breakfast, Big Fish is excellent. Rusty Rudder is very good, albeit pricey....enjoy.
By the looks of the forecast you will have plenty of time to eat and drink. Nasty weather this weekend. Big fish is the best bet for seafood, Nicola's is great for pizza, Rusty rudder has an awesome Friday night buffet.