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Leftover Baked Potato & Bacon Casserole

Leftover Baked Potato & Bacon Casserole

When a huge snow storm moves through bringing with it much colder temperatures and several inches of snow, it calls for good old-fashioned comfort food.

A rummage through the fridge yielded several leftover baked potatoes.

I will often bake extra potatoes with the idea of having some leftover to use later in the week and just as often, in order to make best use of my oven, I also will add several potatoes when I’m baking other meals.

During my search of the fridge, I also found 6 strips of bacon from Sunday morning breakfast, sour cream and a block of cheddar cheese.

With a couple more additions from the fridge and pantry, the result was a yummy Leftover Baked Potato and Bacon Casserole to serve with the meat dish I’d chosen: Pork Medallions Pan-fried with Mushrooms and Onions.

Note: This is what I call a “use what you have recipe.”

The first time I made it, I only had a cup of sour cream, so I added a cup of mayonnaise. If I’d had a full 16 oz container of sour cream, I probably wouldn’t have thought to add the mayonnaise.

As it turned out, the mayo added flavor to the recipe that using only sour cream wouldn’t have.

Same thing with the bacon… the first time I made the dish, I had 8 slices so I used 8 slices. This time I had 6 strips of bacon so that’s what I used.

I usually have a block of cheddar cheese in the fridge. But feel free to substitute a different cheese if that’s what you have.

The recipe can be easily adapted to suit what you have on hand or to your own personal tastes.

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Leftover Baked Potato & Bacon Casserole

  • 8 medium baked potatoes
  • 1 medium onion (chopped)
  • 1 cup sour cream
  • 1 cup Helmans Mayonnaise (or brand of your choice)
  • 6 to 8 slices cooked bacon (chopped or crumbled)
  • 2 cups grated cheddar cheese (or whatever you have on hand)


Start by grating the cheese.

Grated Cheddar Cheese

Slice the potatoes into bite sized chunks (leave the skins on) and place them in a large bowl.

Cutting leftover baked potatoes into cubes

Dice the onion and add.

Dice one onion

Chop the bacon. Place half the bacon in the bowl with the potatoes and onions. Reserve the rest of the bacon to garnish the top of the casserole.

Crumble or chop the cooked bacon

You can also add about 2/3 of the grated cheese at this point. The other 1/3 of the cheese will be sprinkled on top of the casserole.

Measure out 1 cup each of sour cream and mayonnaise… into the bowl they go.

I like to use one of these KitchenArt Adjust-a-Cups. It makes measuring things like sour cream and mayo so easy.

Set the cup to the measurement you need and fill with the ingredient.

Measure one cup of sour cream

Getting it out of the measuring cup is as simple as holding the cup over the bowl, pushing up the bottom and scraping whatever ingredient you’re measuring into the bowl.

Sour cream added to bowl for the Leftover Baked Potato Casserole

Mix everything together. Add salt and pepper to taste.

Leftover Baked Potato Casserole with salt and pepper added to taste

Transfer everything to a lightly buttered casserole dish. (The pretty green and white one pictured is 8”X12”.)

Sprinkle the rest of the grated cheddar cheese on top. Garnish with the reserved bacon crumbles.

Grated cheddar cheese and crumbled bacon added to the top of the Leftover Baked Potato Casserole

Make sure to use up every last crumb of the bacon!

Now it’s ready to be covered with foil and go in the oven to bake at 350ΒΊF for 40 to 45 minutes.
Leftover Baked Potato Casserole ready to go into the oven

After filling the green casserole dish, I had some of the leftover baked potato mixture left, so I buttered another smaller casserole dish and filled it too.

Small Leftover Baked Potato Casserole ready to go in the oven

Remove the foil for the last 10 minutes to allow the cheese to brown a bit and the bacon to get nice and crispy.

Serve with whatever meat and veggies you desire.

Leftover Baked Potato Casserole served with pan fried pork medallions, fried mushrooms, onions and peas

Now doesn’t that look delicious!

And it smells yummy too.

Close up of Leftover Baked Potato Casserole

After supper, the smaller casserole had cooled enough to cover it with foil and freeze. We’ll pull it out one night when we need something extra to add to a meal.

Or who knows, it might end up being given to one of the kids for them to use.

Small Leftover Baked Potato Casserole ready to freeze






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Leftover Baked Potato and Bacon Casserole





This post originally appeared on Super Mom – No Cape in February 2015. It has been completely updated with new photos and more detailed instructions.

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  • Shirley Wood
    September 28, 2018 4:18 pm

    YUM! This recipe is being Featured at the next Merry Monday party in a roundup of 7 or Less Ingredient Recipes. Hope to see you back next week.

    • Super Mom No Cape
      September 29, 2018 6:18 pm

      Thanks so much Shirley, for stopping by to comment and for the feature! I’ll be sure to stop by and check it out. πŸ™‚

  • Renee
    January 30, 2018 1:53 pm

    Yum! I may have to try this out. (I’ll have to substitute fake cheese and sour cream, so I’m sure it will not be as tasty as yours – but I can make it with the dairy for the rest of the family. It looks great!)

  • Joy McDonald
    January 22, 2018 1:15 pm

    Oh that looks so yummy!! I could do with some right now! I’m going to save this recipe πŸ™‚ Thanks for sharing! xx

  • Susan
    February 4, 2015 5:40 pm

    I would make that even without using leftovers! It sounds wonderfully yummy. I tell ya, if I cooked a pound of bacon and only had my son and me to eat it, there wouldn’t be 8 slices left – probably not two!

  • Catherine
    February 4, 2015 3:21 am

    It sounds so chilly where you are. No snow here yet in south Wales but cold winds. That casserole sounds just the thing to warm you up without going shopping. I spent the morning yesterday making chicken and barley soup from a chicken carcass and some carrots and leeks. Result=delicious warming soup for lunch.

  • Linda
    February 3, 2015 8:14 pm

    Great way to enjoy the weather that day!

  • Kate
    February 3, 2015 4:53 pm

    Looks and sounds delicious, Sue! Thanks for sharing.

  • Felicia Few
    February 3, 2015 1:49 pm

    Yummy!! That sounds great and looks good too. This is a great meal for anytime, but if you are snowed in it even better.

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