Combine potatoes, salad dressing, bacon and onions; mix well. Spoon into 1 quart casserole. Bake at 350F for 35 to 40 minutes or until thoroughly heated. Sprinkle with cheese; continue baking until cheese is melted.
NOTE: Because the consistency of mashed potatoes varies, more or less salad dressing may be required for this recipe. Add enough salad dressing to leftover mashed potatoes to make them a creamy consistency.
Variation: Recipe may be doubled, if desired.
Make ahead: Prepare recipe as directed except for topping with cheese and baking. Cover; freeze. When ready to serve, bake, covered at 350F for 45 minutes; stir. Continue baking, uncovered, 20 minutes or until thoroughly heated. Sprinkle with cheese; continue baking until cheese is melted.
Casseroles - Quiches
Cajun Country -- New Iberia, Louisiana