Place all ingredients in a blender and puree until smooth. Set aside.
For the salad:
Season the chicken with salt and pepper. Preheat the grill. Cook the chicken breasts on the grill over high heat until done, approximately 4 minutes on each side. Transfer to a cutting board and slice into 1/2 inch pieces across the grain. Set aside.
Divide the arugula among two plates. Arrange the chicken on top of the arugula and top with the peaches. Sprinkle with the quinoa and almonds. Top with the raspberry vinaigrette and serve immediately.