In a large pot of salted boiling water, cook noodles until al dente. Drain.
n a small bowl, whisk together lime juice, brown sugar, fish sauce, soy sauce, and sambal. Set aside.
In a large nonstick pan over medium-high heat, heat oil. Add bell pepper and cook until tender, about 4 minutes. Stir in chicken and shrimp and cook for about 5 minutes.
Push the chicken, shrimp and vegetables to one side of the pan and pour in the egg. Scramble until just set then mix with the shrimp chicken mixture. Add the cooked noodles and toss until combined. Pour in the lime juice mixture and toss until the noodles are coated. Garnish with green onions and peanuts.