Preheat your oven to 350°F (175°C).
In a large skillet over medium heat, cook the ground beef until browned. Drain any excess fat.
Stir in the black beans, corn, diced tomatoes with green chilies, cream of chicken soup, sour cream, and taco seasoning. Mix well and heat until warmed through.
In a greased 9x13 inch baking dish, layer half of the tortilla chips on the bottom.
Pour half of the beef mixture over the chips, then sprinkle with 1 cup of cheddar cheese.
Repeat the layers with the remaining tortilla chips, beef mixture, and top with the remaining cheddar cheese.
Bake in the preheated oven for 25-30 minutes, or until the cheese is bubbly and golden.
Remove from the oven and let it cool for 5 minutes. Garnish with green onions and cilantro if desired before serving.