Heat oil in a skillet; season chicken with chili powder, cumin, garlic powder, onion powder, salt, and pepper. Cook 6–8 minutes per side; shred. Taste and adjust the seasoning.
Preheat oven to 400°F.
Layer half the chips, chicken, beans, tomatoes, jalapeños, onion, and cheese on a baking sheet; repeat.
Bake 8–10 minutes until cheese melts.
Serve on a white ceramic platter with cilantro, lime, sour cream, salsa, and margaritas.
Notes
Use sturdy chips for the best results.
Store leftovers separately in the fridge for 3 days; do not freeze assembled nachos.