Cajun Tilapia Soup with Polenta

Name: Cajun Tilapia Soup with Polenta
Ingredients: 1 Big red tomato, blanched; 3 smaller red tomatoes, blanched; 1 medium size yellow tomato, blanched; 1 small/medium yellow onion, chopped; 3 big garlic cloves, finely chopped; 6 teaspoons of olive oil; 3 cups of fish broth; 2 cups of white potato cubes; 1 jalapeno pepper, cut in small pieces; 2¼ tablespoon of finely chopped fresh coriander; 2 branches of fresh silver thyme; ¼ teaspoon of hot Hungarian paprika; 6 teaspoons of lime juice; 5 small Tilapia Fillet; 3-4 tablespoons of my homemade cajun spice blend