01 - Preheat oven to 375°F. Grease a Bundt pan thoroughly with nonstick cooking spray.
02 - Heat a skillet over medium heat. Add ground beef and cook, breaking it apart, until browned, about 5-7 minutes. Drain excess fat.
03 - Sprinkle taco seasoning over the cooked beef and add water. Stir well to combine. Simmer for 2-3 minutes until sauce thickens. Stir in black beans and remove from heat.
04 - Spread one-third of tortilla chips evenly across the bottom of the Bundt pan. Top with one-third of the beef-bean mixture and sprinkle with one-third of each cheese.
05 - Repeat the layering process two more times, finishing with the remaining cheese on top.
06 - Place Bundt pan in center of oven and bake for 15-18 minutes, until cheese is completely melted and bubbly.
07 - Remove from oven and let cool for 3-5 minutes. Carefully invert the pan onto a large serving platter to release the nacho ring.
08 - Scatter diced tomatoes, black olives, green onions, jalapeño slices, cilantro, and avocado over the top. Add dollops of sour cream and drizzle with salsa.
09 - Serve warm while cheese remains melted and chips are crisp.