Mashed Potato Stuffed Mushrooms

The holiday party season is here! I tend to be more of a grazer in general (it’s actually sometimes a little embarrassing how often I reach for the goodies in our snack drawer at work!), so I love it when a plentiful appetizer spread at parties lets me try new bites throughout the evening. I always first pounce on the stuffed mushrooms though. They are one of my very favorite apps and in fact, of the 16 appetizer recipes currently on my blog, 3 are for stuffed mushrooms, which is about 20%!

I always sauté my mushrooms on the stove first to get the moisture out and then just warm them through in the oven after filling them up, if needed. For this version I stuffed them with mashed potatoes with feta and topped them with caramelized onions. I stirred in feta because I happened to have it on hand, but I think goat cheese would also be lovely. You can, of course, also use leftover mashed potatoes to make these!

Mashed Potato Stuffed Mushrooms
Printable Recipe

2 tablespoons olive oil
1 tablespoon butter
1 large yellow onion, cut into thin strips
24 ounces baby bella mushrooms, stems removed
2 Yukon gold potatoes (mine were 13 ounces), scrubbed, peeled, and cut into chunks
1/4 cup buttermilk
1/2 teaspoon salt
1/2 cup crumbled feta

Heat 1 tablespoon olive oil and butter over medium low heat in a large nonstick pan and cook onions for 45 to 55 minutes, or until caramelized, stirring occasionally.

Heat remaining 1 tablespoon olive oil over medium high heat and sauté mushrooms for 7 to 10 minutes, or until tender, working in batches. Remove from heat and drain well.

Meanwhile, bring a large pot of water to a boil over high heat. Add potato chunks to the pot and boil for 10 to 15 minutes or until fork tender. Drain and mash in a large bowl (yield should be about 1 1/2 cups). Mix mashed potatoes with buttermilk and salt until smooth; mix in crumbled feta.

Spoon potato mixture into mushroom cavities and top evenly with caramelized onions. Makes 12 servings.

Nutrition: 105 calories, 4.7g fat, 1.9g fiber, 3.2g protein per serving
Cost: $0.73 per serving

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31 Responses to Mashed Potato Stuffed Mushrooms

  1. peachkins says:

    This looks like a perfect appetizer for the holidays!

  2. This looks like an amazing combination. Yum!

  3. What a GREAT idea with the potatoes!!

  4. Shannon says:

    oh wow, these look awesome. hmmm… i have some mushrooms in my fridge without any plans :)

  5. Michelle says:

    There are about five dishes that Bret makes really well – apple crisp, latkes, fruit pizza, pork chops and stuffed mushrooms. So, I’ve grown to love stuffed mushrooms and would love to share new recipes with him so I’m not eating the same kind over and over again!

  6. CaSaundra says:

    Yum! Two of my favorite foods in one–can’t beat that! :-)

  7. Lucie says:

    I never would have thought of stuffing mushrooms with mashed potatoes–what a great idea! The caramelized onions sound divine.

  8. Joanne says:

    I would love to have a party filled only with appetizers so that you could get lots of little tastes of things. These stuffed mushrooms sound delicious! Never seen a filling like that before.

  9. Sophie says:

    Your stuffed mushrooms look so appetizing, my friend!

    MMMMMMMMMMMMMMMMM,..georgous food!

  10. LOVE this idea and am wondering why this awesome combo hasn’t crossed my mind! Will definitely have to try.

  11. Kerstin, this is a cute and totally lovely/dainty idea! I love it!

  12. Julie says:

    Sounds perfect…I know I’d be reaching for these more than I’d want to admit!

  13. Pam says:

    I love, love, love this recipe! Bookmarked.

  14. grace says:

    i definitely consider myself a grazer, and up until i read this, i considered myself anti-mushroom. funny, all you have to do is involve mashed potatoes and i’m game. :)

  15. Aggie says:

    Wow those look awesome! I love stuffed mushrooms! These are so different and look delicious!

  16. Blond Duck says:

    Drooling, drooling…

  17. Great appetizers, I always love mashed potatoes and mushrooms together, so it sounds excellent as one delicious bite!

  18. fun!! I just bought a 10-lb bag of potatoes so I’ve been hunting for ways to use them–this is great!

  19. Sues says:

    Wow! Now I totally love stuffed mushrooms… But mushrooms stuffed with mashed potatoes? Amazing! :)

  20. Juliana says:

    Kerstin, great idea stuffing mushroom with mashed potato…the look so cute and the mixture of the texture must be so yummie!

  21. Mary says:

    This is a fantastic idea. These sound wonderful. I hope you are having a great day. Blessings…Mary

  22. Looks great! I’d attack the stuffed mushrooms first too!

  23. Erica says:

    Mashed potato stuffed mushrooms sound awesome! These look phenomenal Kerstin!

  24. Erica says:

    These so look so yummy! I will be saving this recipe!

  25. Lauren says:

    Yummy, I love a good stuffed mushroom recipe!

  26. Cara says:

    What a nice twist on a classic, I would really enjoy these :)

  27. Michael says:

    These look amazing! A great new twist on an old favorite…

  28. Thanks everyone! I wish I had a few of these right now :)

    Michelle – How cute he has his specialties :)

    Grace – Haha, I’m the same way about mashed taters!

  29. [...] and Paleo-friendly, Cake, Batter and Roll‘s Mashed Potato Stuffed Mushroom proves that yes, Kersten will stuff a mushroom with just about anything and make it taste [...]

  30. Efthimia says:

    I tried it a few days ago, to some quite picky guests and they absolutely loved it. To be precise, I too absolutely loved it. I used white balsamic vinegar and a bit of sugar to caramelise the onions and skiped the cheese. I also added a carrot to the potatoes and some nutmeg. Thank you, oh, thank you so much for sharing!

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