Chicken Casserole – Mummy Cooks

Ingredients

• 2 tbsp olive oil
• 1 Onion finely chopped
• 3 celery sticks, diced
• 4 chicken breasts, diced
• 900 ml of chicken or veg stock (low salt)
• 3 carrots
• 4 potatoes, peeled and diced
• 2 parsnips, pealed and diced
• 2 tbsp tomato puree