Warm the olive oil in a nonstick frying pan over medium heat and cook the diced onion for about 2 minutes.
Stir in the shredded chicken and season with chili flakes, chili powder, salt and pepper to taste, garlic powder, onion powder, dried oregano, and yellow mustard.
Stir in the cream and pasta water and mix in the cooked pasta.
Gently cook and stir for about 2 minutes and serve to enjoy.