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

Ingredients:
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

Directions:
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. 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!

  2. 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.

  3. 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. :)

  4. 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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