Kick off the weekend with a fast and fun dinner that's completely customizable.
Preheat oven to 400°F. Place ground chuck and onion in a large nonstick skillet over medium. Sprinkle with salt, cumin, chili powder, and pepper. Cook, stirring often, until meat crumbles and is no longer pink and onions are softened, about 8 minutes. Transfer mixture to a plate lined with paper towels to drain.
Line a large rimmed baking sheet with aluminum foil. Spread chips across pan in a single layer with as little overlap as possible. Top chips evenly with meat mixture, beans, and cheese.
Bake in preheated oven until cheese melts and just begins to brown in places, about 8 minutes. Remove chips from oven, and top with onion, jalapeño, avocado, sour cream, and cilantro. Serve with salsa and lime wedges.