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How to Make Easy Scalloped Potatoes from Leftover Potatoes & Cheese Sauce

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Next time you’re cooking potatoes, why not cook extra to get a head start on meal preparation for the next day.

One of the things you can do with leftover potatoes is make easy delicious scalloped potatoes.

*Tip: If you don’t have leftover potatoes, you can boil some in the afternoon and let them cool before slicing. In this picture,new potatoes were used.

While you’re at it…save any leftover cheese sauce during the week as well. Perhaps a cheese sauce that you used on steamed cauliflower or broccoli? Make a little extra and then use it the next day in this easy-to-prepare dish.

If you don’t have leftover cheese sauce, you’ll find an easy recipe below…

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Recipe for Cheese Sauce: (if you don’t have leftover sauce)

3 tablespoons butter
3 tablespoons flour
¼ teaspoon salt and pepper
1 ½ cups milk
1 cup shredded cheddar or other favorite cheese or mixture

Note: This will make about 2 cups of cheese sauce. How much you need for the scalloped potatoes will depend on how many potatoes you’re using and how cheesy you want your potatoes. There is no real right or wrong way with this process. However, if you are using a 9” square pan of potatoes like shown in the picture above, you’ll probably want at least 1 ½ cups of sauce.

Prepare the Sauce:

In a medium saucepan, melt the butter over medium heat. Next, add the flour, salt and pepper and whisk constantly. Once the mixture has thickened a little, gradually add the milk and whisk thoroughly before adding more milk. Continue whisking until the mixture is fully thickened. Now, it’s time to remove the pan from the stove and stir in the shredded cheese. Stir until combined and serve.

How to Assemble Your Scalloped Potatoes:

Thinly slice your leftover potatoes. As mentioned earlier, if you’re boiling your potatoes specifically to make this recipe, allow them to cool first to prevent burning your fingers and also to keep from ending up with crumbly potatoes.

If you’re using leftover cheese sauce, you don’t need to reheat the cheese sauce before using it. Simply drop it by spoonfuls on the potatoes and the heat from the oven will help distribute the sauce evenly.

LAYER IT: Place half the potatoes in an oven-safe dish. Top with half the cheese sauce. Then add another layer of potatoes. Finally top with the remaining cheese.

Place baking dish, uncovered, into a 350 degree oven. Bake 30-40 minutes until heated thoroughly.  In the last 10 minutes of baking, top with some shredded cheese and allow it to brown.

Extra Tidbits:

– Add turkey ham chunks to make a heartier main dish.

– Add minced onion and other favorite seasonings that you might enjoy…get creative!

Your Turn to SHARE!  Please share your favorite tips for leftover potatoes / or scalloped potatoes.  You may also link to a recipe on your blog or a website.

Pst! If you enjoy scalloped potatoes, please use my share buttons below this post and share with your friends. 😉


  • KarenB

    This is the BEST, by far, scalloped potato recipe I have ever used! Believe me, I have tried MANY and this is the best. Its always a standing joke around my house that when I say we are having scalloped potatoes with dinner, my husband says that he may need a snack as all of the other recipes I have tried take HOURS to get done! These are perfect EVERY time. Seasoned perfectly, cheese sauce is amazing and just all around awesome! Just going to get started in using the mandolin to slice my potatoes now and make the cheese sauce. I do double the sauce. Using my oval corning ware baking dish. So yummy!

    • Rhonda White


      That’s so great to hear! I LOVE scalloped potatoes and sometimes getting them to turn out the way you want can be a challenge…. of course, for me, it has to be an EASY recipe as well or I won’t be making it very often. lol 🙂

  • hady

    Thanks for sharing the recipe. just wondering…under “Prepare the Sauce” where it says….”In a medium saucepan, melt the butter over medium heat. Next, add the salt and pepper and whisk constantly.” I think you meant to include the flour with the salt and pepper…to help thicken the sauce…

  • CS Odeen

    I know this is a blog post from long ago, but I just happened upon it. I have to tell you: your cheese sauce is almost the same as mine (I use Xtra sharp cheddar, but throw in either some Parmesan or Mixed Italian cheeses, just for a little extra depth; otherwise, it’s pretty much identical!). I also cool my potatoes so they don’t fall apart when I try to handle them, for layering!

    I lived, for a time, in an apartment complex where I had both British and Indian neighbors; we barbecued, together as families, regularly. This recipe was not always *ALWAYS* requested, but was dubbed, “Potatoes to Start a War Over!” The guys would fight over the browned cheesy top layer!!! 🙂

    • herChristianHome

      The extra sharp cheese sounds delicious… and that’s a good tip about letting the potatoes cool to layer them without falling apart, thanks.

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