Start by heavily salting your chicken breasts on both side & leaving out at room temperature. This is a quick dry brine to make the chicken more tender.
Preheat oven to 250F and line a baking sheet with a silicone baking mat or parchment paper. In a small bowl, mix together all the Maple Rosemary Pistachio ingredients until coated. Then, spread them out onto the prepared baking sheet and bake for 25-30 minutes. Let cool fully and break apart.
Increase oven temperature to 400F. Wrap prosciutto around chicken breasts, then spray or brush with olive oil and season with a little bit more salt and pepper. Place chicken in a baking dish (or you can reuse the baking sheet that you roasted the pistachios on). Transfer to the oven and bake for 20 minutes or until the internal temperature reaches 160F - it will finish cooking as it rests.
Meanwhile, add shallots to a small bowl with sherry vinegar, salt & pepper. Stir. Let it sit for 15 minutes to remove the sharp onion-y taste.Then, add remaining dressing ingredients and stir or shake until emulsified.
Add mixed greens to a large salad bowl and pour the sherry shallot vinaigrette over top. Toss to coat. Then, add pears, roasted pistachios and crumbled goat cheese and toss again. Plate with prosciutto wrapped chicken & enjoy!