I put in big mixer and mash as for regular old "mashed potatoes".
Then add the remaining ingredients, blending well.
Pour into 3 qt. casserole dish, buttered, bake in 350º or 375º
oven - until bubbly and slightly browned.
They can be put together and put into baking dish the night
before you need them. Take them out a few minutes before
putting them in oven, maybe the time it takes the rolls to brown
for dinner, this lets it "set up."