I was born in Eastern Tennessee but also raised in Arizona/Utah. Loving Mexican food I expanded upon the regular cornbread recipe and made it more spicy, which is my flavor proference. Burned out the old taste buds in Mexico long ago! My family enjoy this a great deal and hope you feel the same.
Measure the flour out in bowl, add the dry ingredients as well as the taco seasoning, and mix well.
Add the shortening and with a gloved hand, mix it into the dry ingredients until it is like grains of sand.
Add the beaten eggs and mix into the dry ingredients. Mix it very well and add the corn, mix again. Toss in the chopped onions and mix thoroughly.
Add the buttermilk a little at a time. It might take more or less. Do not want it thin, but more like a thick cake batter. Mix it very well and pour into a greased/or pam sprayed pan. Make sure the batter is evenly spread out over the whole pan.
Place in preheated oven at 350 degree oven for about 30 minutes or until a knife when inserted will come out clean. Cut into squares and serve with chili, or soups. Add butter on top or slice it open to add the butter. Quite good and tasty.