Sandwich options include wholewheat, TUNA, mayo, PITA, ROLL, and wholewheatbread. Wholewheat is a type of flour made from the entire wheat grain, including the bran, germ, and endosperm. TUNA is a type of fish commonly used in sandwiches. Mayo is a condiment made from oil, egg yolks, and vinegar or lemon juice. PITA is a type of flatbread made from wheat flour, water, and yeast. ROLL is a type of bread that is usually round and has a crisp crust. Wholewheatbread is a type of bread made with wholewheat flour.