I am not sure this is their recipe, but one I made and like.

Mexican Cornbread

1 cup plain yellow corn meal
1/4 cup plain flour
1/2 tsp. soda
1 tsp. salt
1 can cream style corn
1 medium onion, chopped
2 eggs
1 cup buttermilk
5 Tbsp. corn oil
1/2 cup grated cheese
4 or 5 jalapeno peppers or to taste

Mix all ingredients, pour into a greased, hot skillet, and bake at 450 degrees for about 35 minutes.

I lke to brown ground meat with onion added, season with salt and pepper and layer with the cornbread mix. I pour about half the batter in the skillet, add the ground meat with extra cheese, and cover with the remaining mix and bake.