01 - Preheat oven to 400°F. Line a large baking sheet with parchment paper if desired.
02 - In a medium mixing bowl, toss the shredded chicken with 1/2 cup Buffalo wing sauce until evenly coated throughout.
03 - Spread tortilla chips in an even single layer across a large baking sheet or ovenproof platter.
04 - Distribute the sauced shredded chicken evenly over the tortilla chips.
05 - Sprinkle shredded cheddar and Monterey Jack cheese evenly over the chicken layer.
06 - Scatter diced red onion, sliced jalapeños (if using), and half of the chopped cilantro over the cheese.
07 - Bake for 8 to 10 minutes, or until the cheeses are fully melted and bubbling.
08 - Remove from the oven and immediately top with crumbled blue cheese, diced tomatoes, dollops of sour cream, sliced green onions, and the remaining cilantro.
09 - Drizzle with additional Buffalo sauce if desired. Serve immediately with ranch or blue cheese dressing on the side.