In a skillet, saute diced onion for a few minutes until the onion turns soft and translucent. Add minced garlic and diced red pepper and stir to mix.
Add the chicken. Recipe is here http://thailand1dollarmeals.com/recipe/smoky-barbecued-pulled-chicken/
Once mixed, add the chicken stock and cream. Bring this to a boil and add the pasta. Give the pasta a stir. Cover the skillet and simmer for 10-15 minutes, or until the pasta is tender. Remember to give the pasta a stir occasionally. If the water level is too low, add a little more chicken stock. The starch in the pasta will thicken the sauce as it cooks.
Once the pasta is tender, the dish is ready. Season with salt and black pepper as desired. Serve the pasta, topped with cherry tomatoes, Italian parsley, chili flakes if desired, and Parmesan.