Chicken Broccoli Spaghetti with Golden Mushroom Sauce

chicken breast (, skinless, boneless, cut in half horizontally)

salt and pepper

olive oil

Golden Mushroom condensed soup (from the can)

dry Italian Salad Dressing Mix (packaged)

chicken stock

heavy cream

spaghetti pasta ((use gluten free spaghetti for gluten free version))

broccoli florets (, sliced into bite-size pieces)

green onions (, chopped)