Note: if you use the frozen vegetables, be sure not to refreeze them! If you think you may be cooking up a large batch to use over time, be sure to use fresh vegetables. I used frozen vegetables because they stay longer and take only a few minutes to prepare.
The peas, green beans, and corn can all be cooked up together or separately, then blended. Very easy. Steaming them is recommended as this helps to keep all the nutrients from washing away.