(make a rue, puree cooked vegetables, corn starch...)
Sometimes I don't want to take the time for the above methods and it often doesn't thicken them enough for my taste.
I started looking around my kitchen for something else that may work and I found it. Being a mom of little children, I happen to have on hand Baby Rice Cereal. Yes, it sounds odd, but boy does it work. I just dumped a little in the pot, stirred and voila I could already see the difference. I poured in a little more and a little more until it was the consistency I wanted.
Quick, Easy, Works, and Nutritious!