Preheat oven to 375 degrees F. Cut the tortilla into thin strips and lightly spray with olive oil or cooking spray, sprinkle with salt, and bake for 8-10 minutes until golden and crispy. Set aside.
In a large soup pot, spray with cooking spray and cook the onion, garlic, and red bell pepper for 3-4 minutes until softened.
Add diced tomatoes, chicken broth, shredded chicken, and all seasonings. Stir well, bring to a boil, then reduce heat to a simmer for 20 minutes.
Stir in lime juice and cilantro before serving.
Ladle into four bowls, top with crispy tortilla strips, and enjoy!