Vegetarian gets a raised eyebrow, but only because Chekov cannot personally conceive of a diet that doesn't include animals of some kind. (Do fish count? He particularly likes fish.) "You eat no meat at all?"

What are you, Vulcan?

The ensign shrugs. "I am capable of cooking, but I see no reason to when I eat alone." When Uhura first arrived, she was rather alarmed to discover that Chekov was surviving almost exclusively on ketchup and pickle sandwiches and coffee. Food isn't a big priority when he's alone. "Sometimes I cook when Lucy is having dinner with me, and she is kind enough to sample most of the things that I make."