INGREDIENTS
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1poundsmall new potatoes, halved
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8ouncesgreen beans
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3tablespoonsextra-virgin olive oil
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2teaspoonsDijon mustard
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1tablespoonwhite wine vinegar
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kosher salt and black pepper
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12- to 2 1/2-pound rotisserie chicken, meat shredded
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1bunch watercress, thick stems removed
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1yellow bell pepper, sliced