Step 1: Prepare the Cornbread Batter

1. Preheat the oven to 375°F (190°C).
2. In a large mixing bowl, combine cornmeal, flour, baking powder, and salt.
3. In a separate bowl, whisk together milk, egg, melted butter, and honey.
4. Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Do not overmix.

Step 2: Cook the Taco Filling

1. Heat a skillet over medium heat and add a drizzle of oil.
2. Sauté the onions and garlic until fragrant (about 2 minutes).
3. Add the ground beef and cook until browned, breaking it apart as it cooks.
4. Stir in the taco seasoning, tomato sauce, and black beans. Let simmer for 5 minutes.

Step 3: Assemble the Cupcakes

1. Grease a muffin tin or line it with cupcake liners.
2. Fill each muffin cup halfway with cornbread batter.
3. Add 1-2 tbsp of taco filling to the center of each.
4. Sprinkle with shredded cheese, then top with more cornbread batter to enclose the filling.

Step 4: Bake & Serve

1. Bake for 15-18 minutes, or until a toothpick inserted comes out clean.
2. Let cool for 5 minutes before removing from the tin.
3. Top with sour cream, avocado, tomatoes, and cilantro. Serve warm and enjoy!