In a large bowl, add cornmeal, flour, baking soda and salt.
Whisk to combine.
Add eggs, creamed corn, milk (or half-and-half), bacon grease and jalapenos.
Mix well to combine.
Using oven mitts, carefully remove skillet from hot oven and place on trivet, wire cooling rack or towel on top of counter.
Grease skillet carefully with bacon drippings or oil.
Pour half of the cornbread mixture into the bottom of the cast iron skillet.
Spread evenly.
Top with ground beef and cheese mixture, spreading this mixture evenly.
Top with remaining cornbread mixture and spread evenly again.
Bake at 350º for 45-50 minutes, or until well-browned and mixture is set.
Slice and serve immediately.