01 - Preheat oven to 375°F. Grease a Bundt pan with nonstick spray.
02 - In a skillet over medium heat, cook the ground beef until browned, about 5–7 minutes. Drain excess fat.
03 - Add taco seasoning and water to the beef; stir to combine. Simmer for 2–3 minutes until thickened. Stir in black beans, then remove from heat.
04 - Layer one-third of the tortilla chips in the bottom of the Bundt pan. Top with one-third of the beef-bean mixture and one-third of both cheeses.
05 - Repeat layers two more times, ending with cheese on top.
06 - Bake in the center of the oven for 15–18 minutes, until cheese is melted and bubbly.
07 - Remove from oven. Let cool 3–5 minutes, then invert the pan onto a serving platter.
08 - Top with tomatoes, olives, green onions, jalapeño, cilantro, avocado, and dollops of sour cream and salsa.
09 - Serve immediately.