Instructions: Preheat oven to 350 degrees.

Season spinach with salt and pepper and divide between 6 (15-inch) square pieces of aluminum foil. Season fillets with salt and pepper and, using a flat spatula, smear both sides of each fillet liberally with Cashew-Garlic Butter. Lay fillets on top of spinach, fold foil pouches up carefully, and bake 20 minutes. Serve immediately, accompanied with Warm Potato Salad.

Cashew-Garlic Butter: Place the cashews in the bowl of a food processor and pulse for 30 seconds. Add the remaining ingredients and pulse for 15 seconds. Transfer cashew-garlic butter to a small bowl and set aside while you assemble the papillotes.

Warm Potato Salad: In a saucepan, cook potatoes in salted water until fork-tender. Drain liquid and add mustard, red wine vinegar, and salt and freshly-ground black pepper. Add chopped onion, celery, eggs, heavy cream, parsley, and mix well. Taste and adjust seasoning with salt and pepper.

This recipe yields 6 servings.

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