Preheat the oven to 375 degrees Fahrenheit. Spray a 2-quart baking dish with non-stick cooking spray and set aside.
Heat the 1 tablespoon olive oil in a large nonstick pan over medium heat. Add the ½ cup diced red onion and ½ cup diced bell pepper and cook for 3 minutes.
Increase the heat to medium-high, add the 1 pound lean ground beef, and cook until browned, breaking the meat up as it cooks, about 4 to 5 minutes.
Sprinkle the 1 teaspoon smoked paprika, ¾ teaspoon cumin, ¾ teaspoon kosher salt, ½ teaspoon black pepper, ¼ teaspoon coriander, ¼ teaspoon dried oregano, ¼ teaspoon garlic powder, ¼ teaspoon onion powder, ¼ teaspoon chili powder, and 1 tablespoon all-purpose flour. Stir and cook for 1 minute.
Slowly add the ¾ cup water and cook until the beef sauce is slightly thickened. Add the ½ cup corn kernels and ½ cup rinsed and drained black beans, and stir until combined.
Transfer the beef mixture to the prepared baking dish and spread it into an even layer.
Top the beef with 1 cup lightly crushed chips⅓ cup shredded sharp cheddar cheese, and ⅓ cup shredded Monterey jack cheese. Bake until the cheese has melted, about 5 minutes.
Top the taco casserole with desired toppings, serve immediately.
Notes
Topping Suggestions: Olives, guacamole, red onion, sour cream, cilantro, lettuce, limes, diced tomatoes, avocado, radish, hot peppers, or salsa.