Established in 1960, Grotto Pizza is a chain of more than 15 restaurants located in Delaware. Its specialty pizzas include bianco florentine, pepperoni extravaganza, grotto garden and baker s choice. The restaurants also serve breadsticks, onion rings, chicken wings, broccoli bites, sandwiches and pasta. Its sandwiches are available with lettuce, tomatoes, onions, pickles and spices. Additionally, the restaurants provide special birthday packages that include unlimited pizzas, fountain drinks, birthday balloons and goodie bags. Grotto Pizza, with a location in Wilmington, Del., operates a mobile kitchen that offers on-site pizzas for graduation parties, charity fundraisers, family reunions, birthday celebrations and other group affairs. The chain also provides gift cards and sponsors more than 700 community organizations annually.