Mesclun is a salad mix of assorted small, young salad leaves which originated in Provence, France. The traditional mix includes chervil, arugula, leafy lettuces and endive in equal proportions, but in modern iterations may include an undetermined mix of fresh and available lettuces, spinach, arugula, Swiss chard, mustard greens, endive, dandelion, frisée, mizuna, oak leaf, mâche, radicchio, sorrel, and/or other leafy vegetables. Mesclun is good up to 5 days in a plastic bag. Wash and blot dry just before using. The name comes from Provençal —mescla, “to mix”—and literally means “mixture”.