Preheat the oven to 325 degrees. While preheating, whisk together the honey with the cinnamon, cayenne and season lightly with salt. It should create a paste. Add the pecans into the mixture. Stir to combine thoroughly.
Lay the dressed pecans out on a parchment paper lined baking tray and bake for 10 minutes, flip over and bake another 5 minutes. Remove from the oven and set aside. Let the pecans cool for at least 5 minutes before you use them in the rest of the recipe (they will become less sticky the longer they sit.)
While the pecans are baking, whisk together all of the ingredients for the dressing and mix until vinaigrette is creamy. Set aside.
When pecans are done, place the pear noodles, mizuna greens, and pecans in a large mixing bowl, pour over the dressing and toss to thoroughly combine. Serve.