There are a few different things that you can use in place of cornmeal when you are making cornbread or another dish that calls for it. One option is to use all-purpose flour. You can also use a combination of all-purpose flour and wheat flour. Another option is to use polenta. Polenta is made from ground corn, so it will give your dish a similar flavor and texture to cornmeal. You can find polenta at most grocery stores. Finally, if you want to avoid using any type of grain-based flours, you can use ground nuts or seeds instead. Almond meal or sunflower seed meal both work well in recipes that call for cornmeal. Whichever option you choose, just make sure to follow the recipe closely so that you get the correct proportions.