Canja de Galinha (Portuguese Chicken Congee)

Ingredients

• 350g Sadia Chicken Breast (1 large piece)
• ½ Tbsp cooking oil
• 1 small onion (diced)
• 1 garlic cloves (minced)
• 1⁄2 Tbsp tomato paste
• 1 sprig fresh thyme (remove leaves from sprig)
• 180ml chicken stock
• 1 cup uncooked white rice
• 1½ large carrots (peeled and sliced)
• 1 celery stalk (diced)
• 1 potato (peeled and diced)
• 700ml water
• Salt and pepper to taste