Chef Tess' Sweet Potato and Corn Skillet Frittata (in a jar) Keeps 8 to 10 years in the jar. This website has a bunch of recipes for putting together your own meals in jars that you just add water to for food storage. Called the 52 jar method. Has a whole cook book coming out. Kinda like doing your own versions of all those "Gourmet food storage" items.