Place uncooked rice noodles in a bowl, large enough to fit the noodles, and cover with hot water. Allow the noodles to soak 15 to 20 minutes, or until desired doneness. Drain thoroughly in a colander and set aside.
To prepare the Spicy Thai Peanut sauce Combine chicken broth, soy sauce, peanut butter, sesame oil, Thai sweet chili sauce, Hoisin sauce and fish sauce in a 2-quart saucepan. Whisk until blended and bring to a simmer over medium heat; simmer 8 to 10 minutes, or until starting to thicken. Remove the sauce from the heat and cover.
Heat peanut oil in a large (12-inch) skillet over medium-high heat. Add the onion and bell pepper and sauté 3 to 4 minutes. Then add the mushrooms, kale, salt, black pepper ginger and garlic and sauté 3 to 5 minutes, or until bell pepper is starting to soften. Add chicken and sauté 5 minutes. Stir in the peanut sauce and simmer another 5 minutes, or until chicken is cooked through.
Drain the water from the rice noodles and add the noodles to the chicken mixture and toss to combine and serve.