Loaded Cheesy Mashed Potato Casserole

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4.70 from 30 votes
Prep: 15 minutes
Cook: 30 minutes
Total: 45 minutes

Loaded Cheesy Mashed Potatoes Casserole is the perfect side dish for a busy life. It is filled with all the wonderful flavor of a decadent loaded baked potato in a convenient and quick casserole.

Loaded Cheesy Mashed Potato Casserole

This Loaded Cheesy Mashed Potatoes Casserole is perfect for busy lives. It makes it great for any holidays such as Thanksgiving or Christmas. Who invented this special side dish? Find the details.


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What We Love About This Bacon Mashed Potatoes Recipes

A mashed potato casserole is one of those dishes that your family or guests will ohh and ahh over when you place it on the table. It is definitely a decadent, delicious and oh so easy to make.

Mongolian pork on plate
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  • 15 Minutes: It only takes 15 minutes of quick prep.
  • Easy Ingredients: All found in pantry or fridge. No need to boil and mash the potatoes
  • Family Friendly: With all the amazing toppings no one can resist.
  • Adaptable: Can make it low-carb, low-fat, dairy free, etc…
A casserole with sour cream on top.

Ingredient Notes

  • Instant Mashed Potatoes 12 servings that have already been made in a large saucepan with cold water.
  • Sour Cream: You can use a low fat or fat free version if you wish. Greek Yogurt is also a good replacement.
  • Cream Cheese: Set out ahead of time to make sure it is soft for better blending.
  • All Purpose Blend: All the seasonings that you need, garlic powder, onion powder, salt and black pepper.
  • Garlic: Fresh garlic clove to up the flavor, mince finely.
  • Green Onions: Chop the whites and greens.
  • Bacon: Cook the bacon and crumble.
  • Butter: Salted or unsalted butter.
  • Cheddar Cheese and Monterey Jack Cheese: Shred your own for cheesy mashed potatoes.
Potatoes, cheese, bacon and other toppings.

Equipment Needed

How to Make Loaded Cheesy Mashed Potato Casserole

These are the basic steps for making . Please refer to the recipe card below for more detailed instructions and nutrition information.

Making the mixture.

STEP 1: PREP

Begin by preheating the oven to 350 degrees and then spray the pan with a non-stick cooking spray.

STEP 2: COMBINE

Then in a large bowl, stir prepared potatoes, sour cream, cream cheese, garlic and all-purpose seasoning. Next, pour potatoes into a 13×9 baking dish that has been sprayed with non-stick cooking spray. Evenly place cubes of butter on top of potatoes and then spread cheese evenly on top and sprinkle the green onions and bacon on top.

Putting the potatoes in the dish and adding the cheese.

STEP 3: BAKE

Finally, bake at 350 degrees for 30 minutes.

Baking and decorating the casserole.

Prep and Storage Tips for Mashed Potato Recipe

HOW TO MAKE THIS RECIPE AHEAD OF TIME

This loaded mashed potato casserole can be made up to two days in advance for easy prep for Thanksgiving or other special occasion meals.

HOW TO STORE THIS RECIPE

The leftover potato casserole can last in the refrigerator in an airtight container or wrap it well with plastic wrap or aluminum foil.

HOW TO FREEZE THIS RECIPE

Freeze in an airtight container for up to six months, thaw in the fridge overnight and cook per the directions below.

HOW TO REHEAT THIS RECIPE

Reheat in the oven, or individual servings in the microwave until they are warm through.

Frequently Asked Questions

HOW TO MAKE THIS RECIPE HEALTHIER?

Try using low fat and fat free cheese for this recipe, also you can use low fat milk or a milk alternative. Meat alternative bacon is also a viable switch.

CAN I SUBSTITUTE DIFFERENT CHEESES?

Of course, you can use a white cheddar cheese, parmesan cheese, gruyere or other cheese blends.

CAN THIS RECIPE BE DOUBLED OR HALVED?

Indeed, this recipe is perfect for a crowd so you can double by splitting into two baking dishes or half and use an 8×8 pan.

CAN I USE FRESH POTATOES FOR THIS RECIPE?

Yes, leftover potatoes can be great in this recipe. Use a nice russet potato or a yukon gold potatoes.

A side view of the casserole.

Expert Tips for Making This Mashed Potatoes Casserole Recipe

  • Add Fresh Herbs: Top with fresh rosemary or other fresh herbs.
  • Creamy Texture: Add a little more milk, over chicken broth when you reheat.
  • Gravy: This potato dish is perfect with gravy.
  • Dietary consideration tip: Make with fat free or low fat ingredients.

What to Serve with Loaded Cheesy Mashed Potato Casserole

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Loaded Cheesy Mashed Potato Casserole
4.70 from 30 votes

Loaded Cheesy Mashed Potatoes Casserole

Yield: 6 servings
Prep: 15 minutes
Cook: 30 minutes
Total: 45 minutes
Loaded Cheesy Mashed Potatoes Casserole is a delicious side dish. It is enticing to look at and fabulous to eat.
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Ingredients

  • 12 servings of Idahoan instant mashed potatoes, prepared
  • 1 cup sour cream
  • 4 oz . cream cheese, softened
  • 1 1/2 tsp house seasoning
  • 2 cloves of garlic, minced
  • 2 green onions, (whites and greens) chopped
  • 3 slices bacon, cooked and crumbled
  • 1/4 cup shredded cheddar cheese
  • 1/4 cup shredded Monterey Jack cheese
  • 1/2 cup butter, cubed

Instructions

  • Preheat oven to 350 degrees.
  • In a large bowl, combine prepared potatoes, sour cream, cream cheese, garlic and house seasoning.
  • Pour potatoes into a 13×9 baking dish that has been sprayed with non-stick cooking spray.
  • Evenly place cubes of butter on top of potatoes.
  • Spread cheeses evenly on top. Sprinkle green onions and bacon on top of cheese.
  • Bake at 350 degrees for 30 minutes.

Video

Expert Tips

  • Add Fresh Herbs: Top with fresh rosemary or other fresh herbs.
  • Creamy Texture: Add a little more milk, over chicken broth when you reheat.
  • Gravy: This potato dish is perfect with gravy.
  • Dietary consideration tip: Make with fat free or low fat ingredients.
 

Estimated Nutritional Information

Calories: 487kcal | Carbohydrates: 5g | Protein: 6g | Fat: 50g | Saturated Fat: 17g | Cholesterol: 57mg | Sodium: 453mg | Potassium: 157mg | Fiber: 1g | Sugar: 2g | Vitamin A: 637IU | Vitamin C: 3mg | Calcium: 154mg | Iron: 1mg
The nutritional information provided are estimates. To learn more about how I calculate this information go to www.itisakeeper.com/about-its-a-keeper/privacy-disclosure-policies/
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Course: Side Dish
Cuisine: American
Keyword: 30 minute, easy side dish, holiday ham, potatoes

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13 thoughts on “Loaded Cheesy Mashed Potato Casserole”

  1. 5 stars
    I looooooved these mashed potatoes! They were so easy to make and tasted amazing!!! My family is already asking me to make them again!

    Reply
  2. 5 stars
    Thank you so much for sharing this amazing recipe! Will surely have this again! It’s really easy to make and it tasted so delicious! Highly recommended!

    Reply
  3. I still can find when to put the minced garlic in the potatoes. It is in the recipe, but where does it go? I did not use it and the potatoes were still excellent. Took it to a church dinner.

    Reply
    • Sorry. I put it into the potatoes when I am mixing through the cream cheese etc. It would be in the second step in the recipe card. Thanks.

      Reply
  4. 5 stars
    love your recipes –I have made many –easy and always great to have items in the pantry –the side dishes are wonderful

    Reply
  5. This is so funny. The minute I saw the picture in the email I wondered if I could substitute wonderful Idahoan potatoes in the recipe! Turns out, no need, they’re already there.

    Reply

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