Step 1

1 Position a rack in the middle of the oven and preheat to 350 degrees

Step 2

2 Place the chicken in a 9-by-13-inch baking dish, brush both sides of the chicken with 2 teaspoons of the oil and season with 1/8 teaspoon each of the salt and pepper

Step 3

3 Cover the pan with foil and bake for about 18 minutes, or until the chicken is just cooked through and reaches an internal temperature of 165 degrees on an instant-read thermometer

Step 4

4 Remove from the oven (keep the oven on), and set aside to cool

Step 5

5 Using your fingers, or a knife and fork, shred the chicken; you should get about 2 1/4 cups

Step 6

6 Increase the oven temperature to 425 degrees

Step 7

7 Cut the potatoes lengthwise into planks about 1/3-inch thick

Step 8

8 Use the 12 center-most planks for this recipe and save the remaining ends and slices for another use

Step 9

9 Using the remaining 2 tablespoons of oil, brush both sides of the 12 planks, then place them onto a large, rimmed baking sheet and sprinkle with the remaining 1/4 teaspoon of salt

Step 10

10 Roast for 20 minutes, then use a metal spatula to flip the potatoes and roast for an additional 10 minutes, or until they are tender and browned in spots

Step 11

11 While the potatoes are roasting, place the spinach in a large, microwave-safe bowl, cover, and microwave on HIGH until the spinach is wilted but still bright green, 90 seconds

Step 12

12 (Alternatively, you can steam the spinach in a steamer basket set over a pot of boiling water for 90 seconds

Step 13

13 ) In a medium bowl, stir together the peanut butter, water, soy sauce, vinegar, ginger, lime juice, honey and red pepper flakes until well combined and creamy

Step 14

14 Taste, and season with more red pepper flakes, if desired

Step 15

15 To serve, place 2 to 3 sweet potato planks onto each serving plate

Step 16

16 Top each plank with some of the spinach leaves, then a layer of shredded chicken

Step 17

17 Drizzle each with a scant 1 tablespoon of peanut sauce, then sprinkle with sliced scallions and chopped peanuts

Step 18

18 Serve warm or at room temperature

Step 19

19 NOTE: To save time, you can use rotisserie chicken instead of cooking your own