Spiralize the carrots, julienne the yellow bell pepper, slice the mushrooms, cube the tofu and chicken breast, and chop the green onions. Soak the noodles in hot water for about three minutes, then drain excess water and set aside.
Season the chicken cubes and tofu with salt, pepper and soy sauce.
In a large wok or skillet, heat sesame oil over medium-high heat. Add cubed tofu and chicken, and stir-fry until browned and cooked through. Remove from the skillet and set aside.
In the same skillet, add carrots, green onions and yellow bell pepper; stir-fry until vegetables are slightly tender but still crisp. Then, add mushrooms, snow peas, and bean sprouts.
Combine vegetables with tofu and chicken, then add rice noodles. Stir to mix evenly.
Meanwhile, whisk together the remaining soy sauce, stevia, chili flakes, lime juice, cornstarch, and ¼ cup water in a small bowl. Pour the sauce over the pasta and gently toss until evenly coated. Adjust the seasoning with salt and pepper to your liking. Serve immediately, topped with crunchy peanuts for extra flair.