1. Stir fry diced onion and chopped garlic with olive oil until fragrant. Add diced carrot, celery, leek and potato. Fry until tendered.
2. Add diced tomato and fry until moisture seeps out. Add basil, stock, lemon leaves and thyme. Simmer for 50 minutes.
3. Put mixture into blender. Blend to soup. Add seasonings. Stir well.
4. Transfer to serving bowls. Garnish with skewers of scalded scallops, shrimps and fish fillet. Serve.