1. Heat some oil in a large pot.

2. Add the onions and sauté until translucent.

3. Add the chicken and cook until lightly browned.

4. Add the chopped tomatoes and bring to a boil.

5. Season with salt, pepper, and any other spices you like.

6. Reduce the heat and let the soup simmer for 20 minutes.

7. Serve and enjoy!