Step 1: Preheat and Prepare

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with cooking spray or butter.

Step 2: Cook the Filling

In a large skillet over medium heat, add the ground beef. Cook until browned, breaking it up with a spoon, for about 5-7 minutes. Add the diced onion and garlic, cooking until softened and fragrant (about 2-3 minutes).

Step 3: Add the Vegetables and Seasonings

Stir in the corn, black beans, diced tomatoes, green chiles, chili powder, cumin, smoked paprika, salt, and pepper. Let the mixture simmer for 5-7 minutes to meld the flavors together. Remove from heat.

Step 4: Prepare the Cornbread Batter

In a large mixing bowl, whisk together the cornmeal, flour, sugar, baking powder, baking soda, and salt. In a separate bowl, combine the buttermilk, melted butter, and eggs. Stir the wet ingredients into the dry ingredients until just combined, then fold in the diced green chiles.

Step 5: Assemble the Casserole

Pour the beef mixture evenly into the prepared baking dish. Sprinkle a layer of shredded cheddar cheese (if using) on top. Carefully spread the cornbread batter over the beef mixture, using a spatula to even it out.

Step 6: Bake

Place the casserole in the preheated oven and bake for 25-30 minutes, or until the cornbread is golden brown and a toothpick inserted into the center comes out clean.

Step 7: Make the Honey Butter

While the casserole is baking, prepare the honey butter. In a small bowl, mix together the softened butter, honey, and cinnamon (if using). Set aside.

Step 8: Serve

Once the casserole is done baking, remove it from the oven and let it cool for 5 minutes. Slice into squares and serve hot with a generous drizzle of honey butter on top.