Preheat oven to 350 degrees.
In large bowl, combine butter, soup, sour cream and 1 ½ cup of stuffing mix.
Fold in veggies and season with salt & pepper.
Butter or spray 9 x 13 baking dish.
Pour into dish and sprinkle remaining stuffing on top.
Bake 45 minutes until bubbly.
 

Try substituting zucchini for squash or mixing the two.  Recipe doubles easily for company and can be made ahead.

Recipe courtesy of Karen Hackney (origin unknown, so it could be from Better Crocker herself for all I know!)