A sub shop is a type of restaurant that specializes in making and selling submarine sandwiches, commonly known as subs. These sandwiches typically consist of a long roll filled with various ingredients, such as meats, cheeses, vegetables, and condiments. Sub shops often offer a variety of options, allowing customers to customize their sandwiches according to personal preferences. Many sub shops also provide additional menu items, such as salads, chips, and drinks. Popular chains like Subway and Jimmy John's have made sub shops widely recognized, but many local establishments also serve delicious subs. Customers can enjoy their meals in-house or take them to go.