Mexican Soup

I actually made this a few weeks ago and just got around to posting it. Man- was it good! We had tons of leftovers. When I heated up the leftovers I added fresh cilantro and tortilla chips. Mmmm hmmm good!

4 chicken breasts, shredded
Good olive oil
Salt and black pepper
2 onions, chopped
2 stalks celery, chopped
4 carrots, chopped
4 cloves garlic, minced
2 1/2 quarts chicken broth
1 (28-ounce) can whole tomatoes in puree, crushed
2 to 4 jalapeno peppers, minced
1 teaspoon ground cumin
1/4 to 1/2 cup chopped fresh cilantro leaves
Avocados- optional

Preheat the oven to 350 degrees F.
Place the chicken breasts skin side up on a sheet pan. Rub with olive oil, sprinkle with salt and pepper, and roast for 35 to 40 minutes, until done. When the chicken is cool enough to handle, discard the skin and bones, and shred the meat. Cover and set aside.
Meanwhile, heat 3 tablespoons of olive oil in a large pot or Dutch oven. Add the onions, celery, and carrots and cook over medium-low heat for 10 minutes, or until the onions start to brown. Add the garlic and cook for 30 seconds. Add the chicken stock, tomatoes with their puree, jalapenos, cumin, 1 tablespoon salt, 1 teaspoon pepper, and the cilantro, if using. Bring the soup to a boil, then lower the heat and simmer for 25 minutes. Add the shredded chicken and season to taste.