Tortilla soup is a spicy and flavorful Mexican soup that is quick and easy to make. Sauté onions, garlic, and bell peppers in a pot until they are soft. Add in diced tomatoes, vegetable broth, and bring to a boil. Then, add in shredded chicken, corn, and simmer until the flavors meld together. Season with spices like cumin, chili powder, and finish with a squeeze of lime juice. Serve the soup hot with crispy tortilla strips, avocado slices, and a sprinkle of fresh cilantro.