Feel free to use arugula in place of watercress, or shrimp instead of chicken in this bright salad. The pineapple-lime dressing is also great spooned over grilled fish or chicken, or simply stirred into rice.
In a large bowl, whisk together lime zest and juice, shallot, honey, and chile. Add oil and whisk until combined. Season with salt and pepper and stir in pineapple. Add watercress, spinach, cashews, and chicken; toss until greens are coated with dressing.