Panda's Lunch is a term used to describe the diet of the Giant Panda, which consists mainly of BAMBOO. BAMBOO is the primary food source for the Giant Panda, and it makes up 99% of their diet. BAMBOO is a type of grass that grows in many parts of the world, and it is an important part of the Giant Panda's diet. The Giant Panda is an endangered species, and its diet is essential for its survival. BAMBOO is the six-letter answer to the crossword puzzle, and it is an important part of the Panda's Lunch.