easy chicken tortilla soup

Ingredients

• 1 tablespoon olive oil (chili infused, if possible)
• 1 medium onion, chopped
• 1 medium green pepper, seeded and chopped
• 1 medium poblano chili, seeded and diced
• 1 clove garlic, minced
• 1 quart fat-free chicken stock
• 1 can black beans, drained and rinsed (15 oz)
• 1 can diced tomatoes, with juice (15 oz)
• 2 tablespoons roasted red pepper, chopped (the kind in a jar) optional
• 1-2 cup shredded chicken - can use rotisserie chicken
• 1/4 teaspoon salt, or to taste
• 1/4 teaspoon seasoned salt, or to taste
• 1/8 teaspoon black pepper, or to taste
• 1/4 teaspoon cumin, or to taste
• 1 teaspoon chili powder, or to taste
• 2 ounces tortilla chips, broken up
• 1/4 cup shredded Mexican blend cheese
• cilantro, lime, black olives and avocado, for garnish
• 1 tablespoon sour cream or plain yogurt for each serving, if desired