Cut chicken thighs lengthwise against the grain and place them in a medium bowl. Add the rest of the marinade ingredients and let them marinate for 20 minutes.
In a small bowl, mix all the sauce ingredients together.
Chop all the vegetables.
Fill a large pot with water and bring it to a boil.
In a large sauté pan over medium-high heat, add 1 Tbsp oil and cook chicken in batches to avoid overcrowding the pan.
Once the chicken is done cooking, add 2 Tbsp of oil and sauté vegetables for 3-5 minutes, ensuring they retain a bite.
Start cooking noodles according to the package; thin rice noodles typically take 5 minutes.
Add the cooked chicken to the vegetables, followed by the sauce mixture. Bring the sauce to a simmer; it will thicken as it cooks.
Once the sauce thickens, turn off the heat and add the cooked noodles. Toss to coat the noodles and mix everything together.
Enjoy your delicious Black Pepper Chicken and Noodles!