Heat olive oil in a large saucepan over medium-high heat.
Add onion, garlic, and jalapeño. Sauté until the onion becomes translucent and the jalapeño softens.
Season with salt, black pepper, oregano, cumin, and chipotle pepper. Stir and cook for 1–2 minutes until fragrant.
Add the fire-roasted tomatoes and chicken stock. Bring the mixture to a boil.
Reduce heat and simmer for 30 minutes.
Using an immersion blender, carefully blend the soup until smooth.
Taste and adjust seasoning if needed.
Stir in black beans, frozen corn, and shredded chicken.
Simmer for an additional 5 minutes until heated through.
Divide the Chicken Tortilla Soup Recipe into serving bowls.
Top with shredded cheese, avocado, cilantro, tortilla strips, lime juice, and sliced jalapeños.
Serve immediately while hot.