Store this Mediterranean Lentil Soup in an airtight container in the refrigerator for up to 5 days. Reheat gently in a saucepan on the stove, adding more stock or water if it’s too thick. This soup can also be reheated in the microwave in a microwave safe bowl. The pasta will have swelled and absorbed liquid so it will be more like a stew than a soup - we actually like it this way too!