01 - Preheat oven to 375°F. Grease a 10-12 cup bundt pan thoroughly with nonstick cooking spray.
02 - Combine cooked protein with taco seasoning in a skillet over medium heat. Cook until warmed through, approximately 3-5 minutes. Adjust seasoning with salt and pepper as needed.
03 - Arrange a single layer of tortilla chips across the bottom of the bundt pan, allowing slight overlap. Distribute an even layer of cheddar and Monterey Jack cheeses over the chips.
04 - Spread a portion of seasoned protein over the cheese layer. Top with corn, tomatoes, black olives, red onion, and jalapeño slices if using.
05 - Repeat the layering process with chips, cheese, and filling ingredients until all components are used. Ensure the final layer consists entirely of cheese for optimal melting and browning.
06 - Press down firmly on the layered ingredients with a spatula or clean hands to compress the mixture. This ensures the nachos will hold their shape when inverted.
07 - Transfer the bundt pan to the preheated oven. Bake for 18-22 minutes until cheese is completely melted and bubbly, and the top achieves a golden-brown color.
08 - Remove from oven and let stand for 5 minutes to set. Carefully invert the bundt pan onto a large serving platter, lifting the pan slowly to release the nacho ring.
09 - Sprinkle fresh cilantro over the top. Serve immediately alongside bowls of sour cream, guacamole, and salsa with lime wedges on the side.