Leftover Mashed Potato Soup

"Great way to use up leftover mashed potatoes. Perfect for a light lunch or serving with sandwiches. Enjoy!"
photo by PalatablePastime photo by PalatablePastime
photo by PalatablePastime
photo by *Parsley* photo by *Parsley*
photo by Jennifer G. photo by Jennifer G.
photo by Anonymous photo by Anonymous
photo by Chef Petunia photo by Chef Petunia
Ready In:




  • Cook bacon, and set aside to crumble.
  • In a large saucepan, cook onion in butter or dripping until softened.
  • Add chopped mushrooms and cook until tender and onion is golden.
  • Add chicken broth, salt, pepper, and paprika, stirring to mix.
  • Blend in mashed potatoes, stirring until lumps are gone.
  • Bring soup to a boil, then lower heat and add cheddar cheese, stirring until it is melted and smooth.
  • Mix in scallions, crumbled bacon, sour cream, and cream/half and half, stirring to heated through but not boiling.

Questions & Replies

  1. Can this be reheated?
  2. Anyone have calorie and fat numbers?


  1. Had shallots that needed using & added with onions. Had no mushrooms & didn't miss them. Recommend "blooming" paprika in butter before adding broth. If using canned broth, needs no salt. Had a lot of potatoes & added extra broth. Very forgiving of proportions. Good combination of flavors. Doesn't need the creams. Quick, easy & tasty!
  2. I love making soup - there's just something comforting about it. This was a very easy and yummy soup. Don't be tempted to add more salt - I did and it really doesn't need it at all. I used the bacon grease (not butter) and left out the scallions because I didn't have any. Very enjoyable!
  3. This was delicious! I doubled also and used up leftover ham instead of bacon. The mashed potatoes were made with cream cheese and sour cream, so the soup was very rich!
  4. Delicious! I had 3 cups of leftover mashed potatoes so I threw in the extra cup so as not to waste any. I didn't use the cream because I didn't have any but subbed 1% milk and it worked great. I didn't have scallions or mushrooms on hand either but even without them it was awesome. As another reviewer stated this is a very forgiving recipe. Try it with what you have,you wont regret it.It is cold here today so this was a bowl of warm velvety heaven, thanks Sue Lau:D
  5. I agree that this was a great way to use up leftover mashed potatoes. I left out the mushrooms (son's preference) and reduced the amount of kosher salt (as the potatoes had already been salted). Ingredients were on hand; perfect for a "before grocery shopping" meal. Thanks for the posting!


  1. Add a minced garlic clove with the mushrooms!
  2. Double it!
  3. This was very good. I used leftover Kittencal's Make-Ahead Mashed Potatoes recipe #191490. I used bacon dripping to saute the onion and mushroom. I did not add additional sour cream or the half and half to the soup and used Hormel bacon bits. I served this with a small dollop of sour cream in each bowl and some snipped chives instead of scallions. My husband also add some leftover ham to his. Very tasty.
  4. This was sooo good!! I used butter and real bacon bits instead of frying bacon and omitted the mushrooms, salt, and cream. From now on, I will always make leftover mashed potatoes so that I can make this soup!
  5. Was going to make some potato bread with leftover mashed potatoes and came across this recipe and made this instead. Four stars because I changed it a bit - omitted mushrooms and added a pinch of saffron and some dill. Delicious. Thanks for posting.


I am a longtime member since 2002. While I have many recipes here, most of my current recipes are on my food blog at palatablepastime.com I may occasionally post something extra I have here. If you have questions, you can always contact me at contact@palatablepastime.com
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