In a large skillet, heat the olive oil over medium-high heat. Add the diced onions, chopped green bell pepper, and minced garlic. Cook until they are soft and translucent, about 5 minutes.
Add the ground turkey to the skillet and sauté until the meat has cooked through and browned, breaking it up into small pieces with a wooden spoon as it cooks.
Add the jalapeño, chili flakes, cumin, sea salt, and ground black pepper to the skillet. Stir and cook for about 1 minute.
Drain and rinse the light and dark kidney beans, then add them to the pot along with the chicken broth. Stir everything together and bring the mixture to a boil.
Reduce the heat to low, add diced tomatoes and let the chili simmer for about 15 minutes, stirring occasionally.
Meanwhile, preheat the oven to 375°F.
While the chili is simmering, prepare the cornbread layer. In a large bowl, combine the fine cornmeal, all-purpose flour, and baking powder.
In a separate bowl, whisk together the beaten eggs, vegetable oil, whole milk, sugar, and salt.
Add the dry ingredients to the wet ingredients and stir until just combined.
Pour the cornbread batter on top of the simmering chili in the skillet, spreading it out evenly to cover the chili completely.
Transfer the skillet to the preheated oven and bake for about 20 to 25 minutes, or until the cornbread is golden brown and a toothpick inserted into the center comes out clean.
Remove the pot from the oven and let it cool for a few minutes before serving.
Garnish the chili cornbread with your choice of toppings, such as chopped jalapeño peppers, sour cream, cilantro, chives, or shredded cheese.
Serve.
Notes
Storage: Leftover chili cornbread casserole will keep in your fridge for 3 to 4 days, covered tightly or sealed in food storage containers, zip top bags, etc. Reheat it in the microwave, toaster oven, or regular oven at 350°F until warmed through.
Protein Options: Ground beef or bison can be used instead of ground turkey if you prefer.
Vegetarian Option: This chili is also great as a vegetarian dish! Just substitute your favorite veggies and/or additional beans for the meat.
Cornmeal: White or yellow cornmeal can be used, but make sure it is finely ground and not coarsely ground. (Don't use "cornflour" or cornstarch, though - those are too soft.)
Skillet: If you don't have an ovenproof skillet, you can make the chili on the stove in a skillet or saucepan, and then scoop it into a baking dish. Top with cornbread, and bake.