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    Home » Vegetarian » Smashed Potato Casserole

    Smashed Potato Casserole

    Dec 26, 2019 · by Valentina · 30 Comments

    This post may contain affiliate links.

    Jump to Recipe

    This Smashed Potato Casserole recipe is full of smoky Spanish flavors. It's a unique, deliciously rich, creamy, comforting dish. A perfect fall side dish, it's great with braised meats, chicken and salads.One serving of Smashed Potato Casserole on a purple plate.

    Much like "the stars align" and something big can happen in your life -- my ingredients, my day, and my thoughts aligned and this potato recipe happened.

    I was staring at 3-pound bag of  Baby Dutch Yellow Potatoes for a couple of days on my counter, and all I knew was that I wanted to smash them. Literally!

    With two Spanish cheeses in the fridge, I decided they would have a Spanish vibe.

    I got out the smoked Spanish paprika and my Smashed Potato Casserole recipe was born.
    Roasted Baby Dutch Yellow Potatoes on a baking sheet

    How to Make Smashed Potatoes

    • On a sheet pan, roast small potatoes in a very hot oven.
    • Roast them until they're fork tender -- when you pierce the largest one with a fork, it should slide off easily. The skins should be wrinkled and slightly golden brown when they're done.
    • Drizzle the potatoes with oil. Then use a smooth meat mallet or the bottom of a your smallest sauté pan to gently press down on the potatoes. They will crack and become flat on both sides. (Don't press to hard -- you don't want them too thin, and you want them to stay as intact as possible.)
    • Season with salt and pepper. Coat the bottom of a skillet with oil and sauté the potatoes until the bottoms are nicely browned, 8 to 10 minutes. Then turn them over and cook until the other side is nicely browned, about 5 minutes. (You can also do this with a bit more oil on the sheet pan in the hot oven.)

    Sheet pan full with smashed potatoes.

    What do smashed potatoes taste like?

    Think creamy and buttery mashed potatoes on the inside, and crispy French fried potatoes on the outside.
    Caramelized onions with kitchen tongs

    What gives this its smoky Spanish flavor?

    • Spanish smoked paprika
    • Manchego cheese
    • Spanish goat cheese

    Smoky Spanish Smashed Potato Casserole recipe in a white baking dish.

    Enjoy every last bite of this amazing smoky Spanish Smashed Potato Casserole!

    One serving of Smoky Spanish Smashed Potato Casseroleon a purple plate with a red baking dish behind it.

    More smashed potato recipes:

    • Garlic Herb Smashed Potatoes
    • Smashed Potato Pizza Crust
    • Smashed Potato Curry Stew
    One serving of smashed potato casserole on a purple plate

    Spanish Smashed Potato Casserole Recipe

    Valentina K. Wein
    This recipe is unique, deliciously rich, creamy, and comforting. It's the perfect fall side to go with braised meats, chicken, salad, and so on.
    5 from 2 votes
    Print
    Prep Time 20 mins
    Cook Time 1 hr 10 mins
    Total Time 1 hr 30 mins
    Course Dinner
    Cuisine American
    Servings 8
    Calories 474 kcal

    Equipment

    • meat mallet

    Ingredients
     
     

    • 3 pounds Idaho Baby Dutch Yellow Potatoes, washed and dried
    • 3 tablespoons unsalted butter
    • 4 cups yellow onions, thinly sliced
    • 1 cup heavy cream
    • 2 teaspoons smoked paprika (Pimentón de La Vera)
    • 1 teaspoon salt
    • a few turns of freshly ground black pepper
    • 1½ cups Manchego cheese, grated
    • 1½ cups Spanish firm aged goat cheese, grated (It's okay if you can't find a Spanish one - firm and aged is what we're going for)
    • olive oil for the pan

    Instructions
     

    • Preheat the oven to 400°F, adjust a rack to the center, and add the potatoes in an even layer to a baking sheet (one with a small edge so they don't roll off).
    • Once it's preheated, place the baking sheet in the oven and roast the potatoes until they are fork tender -- when you pierce the largest one with a fork, it should slide off easily. This should take about 45 minutes, and they should be turned about half way through. (You can jiggle the baking sheet and they should easily move around.) The skins should be wrinkled and slightly golden brown when they're done. Remove them from the oven and set them aside.
    • Reduce the heat of the oven to 375°F, and keep the rack in the center.
    • While the potatoes are roasting, add the butter to a heavy-bottomed, very large (12 to 14-inch) sauté pan. Place it over low heat and let the butter melt.
    • Using a metal spoon, remove the milk solids from the surface -- they will appear as a creamy colored foam. This is essentially a quick way to clarify the butter. (The milk solids are the part of the butter that has a low burning point, so removing them helps prevent burning the contents of the pot.)
    • Turn the heat to medium-high and add all of the onions. During the first 15 minutes, stir them every few minutes. Once the onions are soft, sprinkle with a bit of salt, reduce the heat to medium-low and stir periodically. Every so often the bottom and sides of the pan will begin to brown. This is what you want! Use a wooden deglazing spatula to work that back into the onions. For this recipe, I like to caramelize the onions until they're all golden and soft, but still have a bite to them. They should look something like this:
    • Add the onions to a large mixing bowl and stir in the cream, paprika, salt, and a few turns of black pepper. (Do not wash the pan from the onions!) Let this cool to room temperature and then mix in both cheeses. Set aside.
    • Drizzle the bottom of the same pan where you caramelized the onions lightly with olive oil. Add the potatoes -- just the amount that will fit in an even layer. You will likely need to do this in two batches.
    • Use a smooth meat mallet or the bottom of a your smallest sauté pan to gently press down on the potatoes. They will crack and become flat on both sides. (Don't press to hard, as you don't want them too thin, and you want them to stay as intact as possible.)
    • Sprinkle lightly with salt and pepper and then turn the heat to medium-high and sauté the potatoes until the bottoms are nicely browned, 8 to 10 minutes. Then very gently, with a flat-bottomed spatula, turn them over and cook until the other side is nicely browned, about 5 minutes. (The second side will brown more quickly because the pan will be hotter at that point.)
    • Add an even layer of the smashed potatoes to the bottom of an approximately 9 x 13 x 2-inch baking. Now evenly distribute half of the onion mixture over the top, being sure to get it into all of the nooks from the potatoes. Add a second and final layer of the potatoes on top -- if there are any gaps, slice some of the larger smashed potatoes in half, horizontally, and use both sides, round side up. Now add the remaining onion mixture over the top, again filling in any nooks between the potatoes. All of the potatoes should be well covered.
    • Place the pan, uncovered, in the preheated 375°F oven and bake until it's golden brown and very hot, about 25 minutes. Let it sit for at least 10 minutes before serving.

    Notes

    Calorie count is only an estimate.
    Keywords fall comfort food recipes, best potato sides
    Have you tried this recipe?I'd love to see it on Instagram! Tag me at @cookingontheweekends or leave a comment & rating below.

    More Vegetarian Recipes

    • Slow Cooked Red Cabbage Stew
    • Halloumi Fries with Greek Yogurt Dip
    • Easy Vegan Cream of Mushroom Soup
    • Crispy Smashed Cauliflower

    Reader Interactions

    Comments

    1. Priscilla | ShesCookin

      September 16, 2015 at 10:53 am

      Mmmmm, nothing better than potatoes and cheese! Looks fabulous and Manchego cheese is one of my faves :))

      Reply
      • valentina

        September 16, 2015 at 2:27 pm

        Thanks, Priscilla! I adore Manchego, too. 🙂

        Reply
    2. Deb|EastofEdenCooking

      September 16, 2015 at 3:41 pm

      Oh my! You have taken smashed potatoes to an entirely new place! Bravo for this fantastic recipe.

      Reply
      • valentina

        September 16, 2015 at 9:41 pm

        Thanks, Deb! They were sooo rich and delicious! 😀

        Reply
    3. Blessing Okpala

      September 17, 2015 at 2:26 pm

      Potatoes, paired with caramalised onions is just spot on. This looks superb and tantalising.

      Reply
      • valentina

        September 17, 2015 at 4:23 pm

        Thanks so much! Hope you try it!

        Reply
    4. Dorothy at Shockingly Delicious

      September 17, 2015 at 3:53 pm

      oh mah gawd....spuds and caramelized onions and cheese! You are wicked.

      Reply
      • valentina

        September 17, 2015 at 4:23 pm

        Dorothy, you MUST give this a go. 🙂

        Reply
    5. Evi- Ev's Eats

      September 17, 2015 at 5:14 pm

      Yum! I love smashed potatoes. These look delicious!!

      Reply
      • valentina

        September 18, 2015 at 7:19 am

        Thanks!! 😀 Hope you try them.

        Reply
    6. Meredith @ The Weekday Gourmet

      September 17, 2015 at 5:37 pm

      Yum! I have some smoked paprika that I just brought back from Spain so I think this recipe will be made soon!

      Reply
      • valentina

        September 18, 2015 at 7:19 am

        Lucky you to have been in Spain. So much good food there!! 🙂

        Reply
    7. Ramya Menon @ War and Cheese

      September 18, 2015 at 9:30 am

      This is the kind of recipe that would be the star at a potluck or the kinda thing my man would love to tuck in to. Just reading about it is mouthwatering! Awesome recipe!!!!

      Reply
      • valentina

        September 18, 2015 at 2:25 pm

        Thanks! Who doesn't love to bring the star dish? Yay! 🙂

        Reply
    8. Callie | Flour and Fancy

      September 19, 2015 at 8:28 am

      I've been looking for a new potato casserole recipe with some flare! Thank you for sharing. Can't wait to try this!

      Reply
      • valentina

        September 19, 2015 at 10:41 am

        Thanks so much, Callie! Hope you love it as much as I do. 🙂

        Reply
    9. Paige @ Where Latin Meets Lagniappe

      September 20, 2015 at 4:46 pm

      Wow, these look terrific! Manchego, carmelized onions, potatoes....I seriously can't wait to give these a try!

      Reply
      • valentina

        September 20, 2015 at 7:43 pm

        Hope you love it, Paige!

        Reply
    10. David

      September 26, 2015 at 8:11 am

      This would make such an awesome dinner! I am sure my mother would want me to add more vegetables, but a potato dinner sounds perfect!

      Reply
      • valentina

        September 26, 2015 at 2:26 pm

        I get your mom. Even though I'm perfectly happy with potatoes only, when I serve my kids, I want there to be green! 😉

        Reply
        • David

          October 16, 2021 at 8:49 pm

          I find that we're eating more potato dishes for dinner all the time! Why not?

          Reply
          • valentina

            October 17, 2021 at 6:03 pm

            Thanks, David! I agree, why not? I've actually been making all sorts of baked potatoes lately -- I'll have to get some up on the site. 🙂 ~Valentina

            Reply
    11. Coco in the Kitchen

      September 29, 2015 at 2:27 pm

      Good God. Is it bad to eat just this for dinner tonight?

      Reply
      • valentina

        September 29, 2015 at 3:32 pm

        No, it's good! 😉 XOXO

        Reply
    12. Jess

      November 05, 2015 at 12:00 pm

      Oh, this sounds divine!!! Thanks for sharing. 🙂

      Reply
      • valentina

        November 05, 2015 at 12:53 pm

        Thanks so much, Jess! Hope you give it a go. 🙂

        Reply
    13. shivam maheshwari

      December 26, 2019 at 10:37 pm

      Oh my! You have taken smashed potatoes to an entirely new place! Bravo for this fantastic recipe.

      Reply
      • valentina

        December 28, 2019 at 2:26 pm

        Many thanks! Happy you like them! 🙂 ~Valentina

        Reply
    14. David @ Spiced

      December 30, 2019 at 5:51 am

      So I've made smashed potatoes, and they're delicious! However, I've never turned those smashed potatoes into a casserole. What a great idea. I totally want to make this as a side dish ASAP...putting baby yellow potatoes on the shopping list now. 🙂

      Reply
      • valentina

        January 02, 2020 at 3:40 pm

        Awesome, David. Hope they're a hit with everyone. 🙂 ~Valentina

        Reply

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    Hi, I'm Valentina, certified chef, owner, recipe developer and photographer at Cooking on the Weekends. I'm also a mom of two boys and a Los Angeleno. I use seasonal whole foods to create unique and comforting recipes for casual entertaining.

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