01 - Preheat oven to 400°F.
02 - Place chicken breasts in a medium saucepan. Rub with olive oil, chili powder, smoked paprika, garlic powder, onion powder, salt, and pepper. Pour in chicken broth.
03 - Bring to a simmer over medium heat, cover, and cook for 15–18 minutes, or until chicken is cooked through and easily shreds with a fork.
04 - Remove chicken from saucepan, shred using two forks, and toss with a few tablespoons of the cooking liquid for extra flavor and moisture.
05 - On a large baking sheet, spread tortilla chips in an even layer. Top with pulled chicken, then sprinkle both cheeses evenly over the top.
06 - Scatter sliced jalapeños and half of the diced red onion over the chips.
07 - Bake in the preheated oven for 7–10 minutes, or until cheese is melted and bubbly.
08 - Remove from oven. Top with diced tomato, avocado, remaining red onion, and chopped cilantro.
09 - Drizzle with sour cream and serve immediately with lime wedges on the side.