When it comes to enhancing the flavor of a simple 5 ingredient tomato soup, there are several tips and tricks you can try to take it to the next level. Here are some ideas:

1. Add aromatic vegetables: Sautéing aromatic vegetables like onions, garlic, and celery before adding the tomatoes can add depth and complexity to the soup. The natural sweetness of caramelized onions and the savory notes of garlic can greatly enhance the overall flavor.
2. Use high-quality tomatoes: Opt for ripe, flavorful tomatoes for the base of your soup. You can use fresh tomatoes when they are in season or choose canned tomatoes that are known for their rich taste, such as San Marzano tomatoes. The quality of the tomatoes will greatly impact the final flavor.
3. Experiment with herbs and spices: Adding herbs and spices can elevate the taste of your tomato soup. Classic choices include basil, oregano, thyme, and bay leaves. For a spicy kick, consider adding a pinch of red pepper flakes or a dash of cayenne pepper.
4. Balance acidity with sweetness: Tomatoes can be quite acidic, so balancing the acidity with a touch of sweetness can enhance the overall flavor. You can achieve this by adding a small amount of sugar, honey, or even a splash of balsamic vinegar.
5. Finish with a creamy element: To add richness and creaminess to your tomato soup, you can finish it off with a touch of heavy cream, coconut milk, or a dollop of Greek yogurt. This will not only enhance the flavor but also create a velvety texture.

Remember, these are just a few ideas to get you started. Feel free to experiment and adjust the flavors according to your taste preferences. Happy cooking!