Spray a large non-stick lidded pan with low calorie cooking spray. Add the chicken and pan fry over medium-high heat until lightly coloured. The chicken doesn’t have to be cooked all the way through at this point.
Set a timer for 12 minutes (or however long your pasta needs to cook) and continue to cook, stirring every couple of minutes. Cook until the pasta is cooked and liquid is slightly reduced. Check the squash is cooked through as well.