Frontier Soup Mixes  Frontier Soups' mixes offer easy shortcuts to homemade gourmet soup that is both healthy and delicious. Their dried soup mixes contain all natural seasonings with no added salt, no preservatives or MSG along with creative soup recipes for success. One of our favorite lines here at SoupOnline.com, we carry their complete line of 40 delicious soups and corn bread mixes including their new and exciting International line.