Ham hock and lentil soup

Ingredients

• 1 tbsp olive oil
• 2 carrots, finely diced
• 1 brown onion, thinly sliced
• 2 celery stalks, finely chopped
• 3 cloves garlic, minced
• 200g red lentils, rinsed and drained
• 750g ham hock
• 2 litres chicken stock