Preheat your oven to 350°F (175°C).
In a large baking dish, layer the chopped vegetables (carrots, potatoes, and onion) at the bottom.
Season the chicken with salt and pepper, then place it on top of the vegetables.
Pour the cream of mushroom soup over the chicken and vegetables, spreading it evenly.
If desired, add a splash of soy sauce or Worcestershire sauce for an added depth of flavor.
Cover the baking dish tightly with foil and bake for 30 minutes.
After 30 minutes, remove the foil and bake for an additional 10 minutes for a golden finish.
Serve hot and enjoy the comfort of a simple, flavorful meal!