6 4-ounce halibut fillets (each about 1/2 to 3/4 inch thick)
4 3-inch-long unpeeled Yukon Gold potatoes, scrubbed
8 tablespoons olive oil, divided
6 garlic cloves, very thinly sliced
10 oz fresh baby spinach leaves
Pat fish dry; sprinkle with salt and pepper. Place large sheet of parchment on work surface. Halve each potato lengthwise. Using V-slicer or mandoline, slice each potato half very thinly. Set 5 to 6 slices on parchment in row, overlapping long sides. Make another row that overlaps short ends of first row, forming 6x5-inch rectangle. Sprinkle rectangle with salt and pepper. Set 1 fillet across overlapped short ends of slices. Fold sides of rectangle over fish, forming packet. Press to adhere. Sprinkle with salt and pepper. Repeat with remaining potato slices and fish fillets.
Heat 3 tablespoons oil in each of 2 large skillets over medium-high heat. Set 3 wrapped fish fillets, seam side down, in each skillet. Cook until golden on bottom, about 3 minutes. Turn; cook until fish is opaque in center, 2 to 3 minutes longer. Transfer to plates; cover to keep warm.
compliments of Bon Appetit