Loaded Mashed Potato Casserole

Krystle
by Krystle
8 Servings
50 min

My loaded mashed potato casserole is super creamy and topped with the most addictive crunchy topping. One bite and you'll see why I crave this holiday side dish year round.

a mashed potato casserole being lifted out with a spoon topped with bacon, cheese, and panko.

I look forward to holiday side dishes like crock pot sweet potato casserole and homemade green bean casserole all year long. I also love this cheesy loaded mashed potato casserole. It has all my favorite fixings and a super crunchy topping. I go back for seconds and thirds of this one! Best of all you can make it a day or two ahead of time!


Why This Recipe Works: A Sprinkle of Food Science


  • Use the Right Potatoes: I use Russets which are high in starch and low in moisture. They mash up super fluffy!
  • Crispy Topping Bacon Grease+ Panko: Panko is super crunchy and the bacon fat adds flavor and helps it brown.
  • Rinse Your Potatoes: We rinse our potatoes twice to remove excess starch. This makes them creamy never gluey.


Ingredient Notes and Shopping Tips
ingredients including russet potatoes, butter, heavy cream, sour cream, bacon, panko, and shredded cheese.
  • Potatoes: Unlike in my Instant Pot mashed potatoes I suggest using russets for this recipe. They are high in starch and cook up super fluffy.
  • Sour Cream: Use full fat for the best results. Avoid Greek yogurt which can be too tangy.
  • Heavy Cream: You can use half and half for a less rich casserole. Warm before adding to help it mix in smoothly.
  • Panko: This Japanese breadcrumbs are lighter and crispier so they add great crunch. If you don't have panko you could use Ritz crackers, corn flakes, or even French fried onions.
  • Cheese: Shred your own cheese from the block for the smoothest melt. Avoid pre-shredded varieties which contain anti-caking agents which can be grainy when melting.
  • Scallions: You can also use chives if you do not have scallions on hand.


Krystle's Tips: Steal My Culinary School Secrets


  1. Start Potatoes In Cold Water: This prevents the exteriors from overcooking before the centers are done.
  2. Return Potatoes to Hot Pot: After rinsing return potatoes to warm pot to help excess moisture evaporate. This prevents them from becoming watery.
  3. Don't Skip Rinsing: This remove excess starch and helps them come out super fluffy.
  4. Don't Overmix: Overmixing releases excess starch which can make the potatoes gummy. Fold ingredients in until just combined.


Can I Use Leftover Mashed Potatoes?

Yes! If they are dry out reheat with a bit of milk or broth.

Can I Make It Ahead?

Yes assemble up to step #6. Allow to sit out for 30-60 minutes to bring to room temperature. Add topping just before baking so it doesn't get soggy.

a 9x13 glass pan with loaded mashed potato casserole garnished with green onions.
More Casseroles To Try


Hashbrown Casserole With Ham


Doritos Casserole


Stuffed Pepper Casserole


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📖 Recipe


Serve with: Pecan Pie Cake with Whipped Cream Frosting


Craving more?

Chicken Tater tot casserole

Chicken Tater Tot Casserole


Tools
Instant Pot Mashed Potatoes

Instant Pot Mashed Potatoes Recipe

Mashed Potato Casserole

Insight for this post was provided by GE.

Loaded Mashed Potato Casserole
Recipe details
  • 8  Servings
  • Prep time: 10 Minutes Cook time: 40 Minutes Total time: 50 min
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Ingredients

  • â–¢ 5 Pounds Russet Potatoes ~10 Medium Potatoes, Cubed
  • â–¢ 1 Stick Butter Softened and Cubed
  • â–¢ 1 Cup Sour Cream
  • â–¢ 1 Cup Heavy Cream Warmed
  • â–¢ 6 Slices Bacon
  • â–¢ 1 1/2 Cups Panko Bread Crumbs
  • â–¢ 1/4 Cup Scallions Thinly Sliced
  • â–¢ 1 Cup Cheddar Cheese Shredded
Instructions

Preheat oven to 350°F. Wash, peel and cube potatoes. Rinse with cold water.
In a large sauce pan, cover potatoes with cold water and add salt to taste.
Bring to boil, and cook for 10-15 minutes or until fork tender. Drain and rinse. Return to hot pot and allow to evaporate.
Spread potatoes evenly onto 2 rimmed baking sheets. Bake for 5-7 minutes or until the moisture has evaporated.
Mash potatoes (I used a regular old potato masher), butter, and sour cream. Fold in heavy cream. Season with salt and pepper to taste.
Evenly spread potatoes into a 9x13 inch baking dish.
Preheat oven to 350 degrees F.
In a skillet, cook bacon until crisp. Reserve fat.
In a large mixing bowl combine bacon, one to tablespoons of rendered fat, panko, cheese, and scallions. Season with salt and pepper to taste.
Spread over the top of the mashed potato mixture.
Bake for 40-45 minutes or until heated through.
Krystle
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