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Prep 20 mins
Cook 30 mins
Official Contest Entry: Simply Potatoes 5Fix. Main Dish Casserole.
Make and share this Potatoe Rueben Casserole #SP5 recipe from Food.com.
- Preheat oven to 350 degrees. Grease 8x8x2 inch baking pan.
- Mix mashed potatoes and deli mustard together.
- Spread 1 1/2 cups mashed potatoes mixture in bottom of baking dish.
- Top with cubed corned beef. Spoon remaining mashed potatoes over top. Spread gently. Sprinkle with swiss cheese. Bake uncovered about 20 minutes or until cheese is golden.