Cheese is a food derived from milk that is produced in a wide range of flavors, textures, and forms by coagulation of the milk protein casein.

Lettuce is an annual plant of the daisy family, Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds.

The tomato is the edible, often red, fruit of the plant Solanum lycopersicum, commonly known as a tomato plant.

Beef is the culinary name for meat from cattle, particularly skeletal muscle. Beef is a source of high-quality protein and essential nutrients.