01 - Preheat oven to 400°F.
02 - Heat olive oil in a skillet over medium heat. Add ground beef and cook, breaking it up, until browned for 5–6 minutes. Drain excess fat.
03 - Stir in chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, and black pepper. Cook for 2 minutes. Remove from heat.
04 - Arrange tortilla chips on a large, ovenproof platter or baking sheet.
05 - Evenly spoon the seasoned beef over the chips. Sprinkle both cheeses generously on top.
06 - Bake in the oven for 8–10 minutes, or until cheese is melted and bubbly.
07 - Remove from oven. Top with diced tomato, red onion, jalapeño, black olives, and avocado.
08 - Dollop sour cream over the nachos and sprinkle with fresh cilantro. Serve immediately with lime wedges.