I found this recipe on the Vitamix website. It's so easy and delicious. I love that I usually have everything on hand! If you're missing one of the veggies, it will taste just as good, as long as it's not the onion!
Place all ingredients into a high speed blender. Mix on low for a few moments and then increase to high. Blend until smooth. If your blender heats, then blend for 5 minutes. If not, heat in a medium size pot on the stovetop until hot. Enjoy!