mixed greensn. chiefly North American a mixture of green vegetables and herbs, esp. used to make a salad.
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1978 Washington Post (Nexis) 27 July e1 Sauce Vincent... 1 ½ cups chopped mixed greens, including spinach, parsley, tarragon.., and, as available, watercress.
1996 Decanter June 33/1 A warm salad of mixed greens and chunks of roast duck.