The grinding station could take corn and turn it into flour. We already have a bucket for water. If you wanted to make the recipe more complicated you could find salt near the shoreline of lakes/oceans. I do not know of a way to add in yeast with current in game objects but the recipe does not need to include it. Simple flour from ground corn and water could be the recipe. Mixing the ingredients could be done in a CRAFTING station. The existing grills could bake the bread but adding in a oven object(s) would be a more elegant solution.
On a side note putting flour and water into a press station should give us a tortilla 
We could then combine a tortilla, steak and peppers into a taco! 
