In a large pot, bring water to a rolling boil. Add the rice noodles and cook according to the package instructions, usually about 5-7 minutes until al dente. Once cooked, drain and rinse with cold water to halt the cooking process. Set aside to cool.
In a medium mixing bowl, combine the creamy peanut butter, soy sauce, sriracha, lime juice, and sesame oil. Whisk vigorously until the mixture is smooth and well blended. If the sauce is too thick for your liking, incorporate a tablespoon of warm water gradually until you achieve a creamy and pourable consistency.
Heat a large skillet over medium heat and add a splash of sesame oil to coat the bottom. Once hot, add the sliced red bell pepper, snap peas, and julienned carrots. Sauté the vegetables for about 4-5 minutes, stirring occasionally until they soften slightly but retain a crisp texture. Season with salt and black pepper to taste.
Reduce the heat to low in the skillet and carefully add the cooked rice noodles, shredded chicken (or tofu), and the prepared peanut sauce. Gently toss all the ingredients together, ensuring everything is evenly coated with the sauce and heated through, about 2-3 minutes.
Using tongs or a large spoon, divide the noodle mixture into individual serving bowls. Sprinkle with sliced green onions, chopped cilantro, and a generous handful of crushed peanuts for added crunch. Accompany each bowl with lime wedges on the side for an extra zest of fresh flavor when served.
Notes
For a colorful touch, serve with a small side of fresh vegetables.