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 apart with a spoon, until browned completely, 5–7 minutes. Drain excess fat from the pan.
03 - Sprinkle taco seasoning over the cooked beef. Pour in water and stir to combine. Simmer for 2–3 minutes until sauce thickens. Stir in drained black beans and remove from heat.
04 - Spread one-third of the tortilla chips evenly across the bottom of the prepared Bundt pan. Distribute one-third of the beef-bean mixture over the chips. Sprinkle with one-third of the Cheddar and one-third of the Monterey Jack cheese.
05 - Repeat the layering process two more times: chips, beef mixture, and both cheeses. Finish with a final layer of cheese on top, ensuring all ingredients are used.
06 - Place Bundt pan on the center rack of the oven. Bake for 15–18 minutes until cheese is completely melted and bubbly.
07 - Remove pan from the oven using oven mitts. Let cool for 3–5 minutes to set. Carefully invert the pan onto a large serving platter.
08 - Scatter diced tomatoes, black olives, green onions, jalapeño slices, and cilantro over the top. Add dollops of sour cream and salsa. Distribute diced avocado evenly across the surface.
09 - Serve while warm and cheese remains melted. Provide additional salsa and sour cream on the side if desired.