Cut the chicken tenders into bite-sized pieces.
Thinly slice the celery and onion.
Heat olive oil in a pot and sauté the chicken tenders.
Once the chicken is cooked, add the celery and onion and stir-fry together.
Pour in water and chicken stock and bring to a boil.
Season with salt and pepper to taste.
Once all the ingredients are cooked, turn off the heat and serve in a bowl.