Bring a large pot of water to boil. Add the rice noodles and cook according to package instructions until al dente. Drain and set aside.
In a large skillet or wok, heat the vegetable oil over medium-high heat.
Add the sliced red bell pepper, julienned carrots, and minced garlic to the skillet. Stir-fry for about 3-4 minutes until they start to soften.
Toss in the bean sprouts and chopped green onions, cooking for another 2 minutes until they are tender yet crisp.
In a small bowl, combine soy sauce, brown sugar, chili paste, and lime juice. Stir until the sugar is dissolved.
Add the drained noodles to the skillet and pour the sauce mixture over them. Gently toss everything together, ensuring all noodles and veggies are coated with the sauce. Cook for an additional 2 minutes until everything is heated through.
Transfer to serving plates, and garnish with fresh cilantro and crushed peanuts for added texture and flavor.
Notes
Adjust chili paste to taste for desired spiciness.