Preheat the oven to 425F. Heat the olive oil over medium-high heat in a large skillet and saute the onions and bell peppers until the onions are translucent for about 3 minutes. Keep an eye on your veggies. You don’t want them to become brown and lose their beautiful color.
To the same skillet, add the ground beef, minced garlic, and spices. Cook the mixture until you no longer see any pink in the meat. At this time, season with salt and pepper.
Add the frozen corn and cook for a minute longer to allow it to defrost. Frozen corn cooks fairly quickly, and since you will bake it, it will come out perfectly done.
Turn off the heat and mix in ¼ cup of the Mexican cheese blend. Stir until the cheese is melted.
Transfer the meat mixture into a 9x13 inch casserole dish and top this mixture with one cup of evenly distributed salsa.
Make the cornbread layer by whisking the cornmeal, baking soda, salt, milk, and eggs. Make sure all ingredients are well combined. Don’t worry if you don’t see an evenly mixed batter.
Pour the cornbread batter on top of the meat and salsa and sprinkle the rest of the cheese evenly over the batter. Bake for 30-40 minutes or until the cornbread is cooked and the cheese is melted.