Preheat your oven to 350°F (175°C) to prepare for baking.
In a large skillet, over medium heat, add the ground beef or turkey. Cook until it’s browned and cooked through, about 6-8 minutes. If there's excessive fat, drain it before proceeding.
Incorporate the black beans, diced tomatoes with green chilies, and taco seasoning into the skillet. Stir well to combine and cook for an additional 5 minutes until everything is heated through.
Grease a 9x13 inch baking dish with cooking spray or a light coating of oil. Spread half of the tortilla chips evenly across the bottom of the dish.
Layer half of the cooked meat mixture over the chips, followed by half of the shredded cheddar cheese.
Repeat the layering process with the remaining tortilla chips, the rest of the meat mixture, and top with the remaining cheddar cheese.
Place the assembled casserole in the preheated oven and bake for 20-25 minutes, until the cheese is melted, bubbly, and slightly golden.
Once baked, remove the casserole from the oven and let it cool for about 5 minutes. Drizzle the sour cream and salsa generously over the top.
Finish by garnishing with diced avocado, jalapeño slices, and a sprinkle of fresh cilantro.
Notes
Serve directly from the baking dish with extra salsa and sour cream on the side.