This cheesy mashed potato casserole provides a delicious accompaniment to any meal - a perfect side dish.
SAVE ON THIS RECIPE!
Make this casserole up to 24 hours ahead of time; cover and refrigerate. You'll need to increase the bake time by about 15 minutes.
Substitute Colby or Colby-Monterey Jack cheese blend for the Cheddar, if you like.
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