Possible Clues:

• Edible plant
• Gave betel nuts as a food plant
• 20 Questions category
• Bean, e.g
• Cabbage, e.g
• Food plant
• Food, very easy to acquire when short of time, packed with energy
• Food the vet and beagle both chewed
• By the sound of it, that's something you'd never meet on the table at last
• Plant with edible parts