In a large pot, heat olive oil over medium heat. Add finely chopped onion, diced carrots, and diced celery. Sauté until the vegetables are softened.
Add minced garlic and continue to sauté for an additional minute until fragrant.
Pour in chicken broth, add a bay leaf, dried thyme, salt, and black pepper. Bring the mixture to a gentle boil, then reduce the heat to simmer. Allow it to simmer for 15-20 minutes.