8 plum tomatoes
4 tablespoons olive oil
1 medium-size yellow onion, diced
6 cloves garlic, minced
1 red bell pepper diced
2 teaspoons chili powder
2 teaspoons ground cumin
4 cups chicken stock
1 dried ancho chili pepper
1 (15-ounce) can peeled tomatoes
salt and freshly ground black pepper
3 cooked, shredded chicken breasts
3 ears fresh corn or 1 (8-ounce) package frozen corn (optional)
2 ripe avocados, peeled and sliced
tortilla chips or strips
2 plum tomatoes, diced
1/4 cup chopped fresh cilantro
1 cup shredded Monterey Jack cheese
sour cream (optional)