PETER: This is a very classic stir-fried vegetable dish in China, but it is not commonly found in the States. The star of the dish is the fresh lily bulbs, which I started finding vacuum-sealed in Chinatown markets only in the past decade or so. The first time I saw them, I knew I had to buy some for my wife, Lily, who eats more vegetables than any human I know. All the produce vendors in Chinatown know her and call her louh bāan (“boss lady”). They love her because she wil