Note: Recipe from Martha's TV kitchen

Salmon, Spinach, and Potatoes Baked in Parchment

Serves 2

This main course stacks up nicely, with layered salmon (packed with heart-healthy omega-3 fatty acids), potato, shallot, spinach, and lemon. A crown of salty caper butter melts as everything steams, adding depth to the already-rich fish.

<!- material list ->   1 tablespoon unsalted butter, softened   1 tablespoon salt-packed capers, rinsed well and coarsely chopped   1 tablespoon coarsely chopped fresh flat-leaf parsley   1 garlic clove, finely chopped   1 large russet potato (about 1 pound), cut into 1/8-inch-thick slices   Coarse salt and freshly ground pepper   2 shallots, thinly sliced   3 ounces baby spinach (about 1 cup)   2 salmon fillets (6 ounces and 1 1/2 inches thick each), skinned   1 lemon, thinly sliced     1.   Preheat oven to 400°. Place a rimmed baking sheet in oven to heat. Cut parchment to size (for tips on folding parchment, see Enlightened Cooking).     2.   Stir together butter, capers, parsley, and garlic in a small bowl; set aside.     3.   Divide potato slices between parchment rectangles, layering them in stacks to form a bed (slightly larger than the salmon fillet) to one side of crease. Season with salt and pepper.     4.   Top each bed of potatoes with one quarter of the shallots followed by half the spinach. Place salmon fillets on top of spinach. Divide remaining shallots evenly between packets. Top each salmon fillet with 2 lemon slices (reserve remaining slices for garnish). Dot with caper butter; season with salt and pepper.     5.   Fold parchment paper over ingredients, at the crease. Starting with one end of the paper and keeping edges together, make small overlapping pleats the length of the paper, creasing tightly as you go and shaping the edge into an arc. The packet should resemble a half-moon.     6.   Carefully transfer packets to preheated baking sheet. Bake until packets have puffed, 15 to 18 minutes. Transfer packets to plates. Serve immediately, opening packets at the table. Garnish with remaining lemon slices.