Cook and stir onion and red pepper in small amount of olive oil about 4 minutes. Add taco seasoning and garlic and cook and stir 1 minute more. Add stock, salsa, chicken, beans, corn and cilantro. Bring to a boil, then reduce heat and simmer for about 20 min.
Meanwhile, cut tortillas into thin strips. Spray with cooking spray and toss to coat. Spread on baking sheet and bake at 350 for 5-7 minutes until starting to brown and crisp. Serve sprinkled on soup.
For salad-combine greens, tomato, onion and pepper and toss. Place on salad plates and top each with a few slices of avocado. Combine yogurt with remaining ingredients and serve on the side.