Here's a variation:
include 2-3 cloves finely chopped garlic, sauteed in a little butter or olive oil
1/2 to 1 pkg thawed, drained (squeezed) frozen chopped spinach (you may wish to chop it finer)
1/2 to 1 can cream of mushroom soup (I dislike mayonnaise)
Follow the rest of the instructions. Wheat Thins also work well to scoop up this stuff. And Mitzi is telling the absolute truth - people will follow you home for this.
You can also make a side dish out of this recipe by adding 1.5-2 C. cooked rice and follow the same instructions.