Creating Hearty Cowboy Casserole is easy if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Brown the Beef: In a large skillet over medium heat, cook the ground beef until well-browned. Season with salt, pepper, garlic powder, onion powder, and chili powder.
3. Combine Ingredients: In a large mixing bowl, combine the cooked beef, black beans, corn, cream of mushroom soup, and diced tomatoes. Stir until everything is evenly mixed.
4. Prepare Casserole Dish: Spread half of the crushed tortilla chips evenly at the bottom of a 9×13-inch casserole dish.
5. Layer the Casserole: Pour the beef mixture over the first layer of tortilla chips. Top with the remaining crushed chips.
6. Add Cheese: Sprinkle the shredded cheddar cheese over the top of the casserole, covering it thoroughly.
7. Bake: Place in the preheated oven and bake for 40-45 minutes or until the cheese is bubbly and the casserole is heated through.
8. Cool Slightly: Remove from the oven and let it cool for about 5 minutes before slicing.
9. Serve: Garnish with fresh herbs, if desired, and serve with sour cream on the side.

This step-by-step guide will help you put together an incredible Hearty Cowboy Casserole with ease.