Dice Chicken and Slice Mushrooms.
Over medium-high heat, heat a medium pan. Add Chicken, Mushrooms and ½ teaspoon each of Salt & Pepper. Continue cooking until chicken is cooked throughout.
Add Sour Cream, Cream Cheese and remaining seasoning (including ½ teaspoon each of Salt & Pepper). Stir until ingredients are mixed throughout.
In a large bowl, combine Spaghetti Squash and contents from pan. Toss all ingredients and then pour contents into baking dish. Sprinkle with Parmesan Cheese and then [cooked-timer minutes="15" desc="bake for 15 minutes."]15 Minutes[/cooked-timer]