Potato tart with sweet potato and onion

This potato tart with onion and sweet potato is one of the easiest recipes there is. I love it because it serves as a side dish, and it is also perfect for lunch if you serve it with a good salad.

This potato tart is the easiest, most delicious recipe you’ll ever find. It only takes five ingredients to prepare. And if you have leftovers, there are very easy to transform into a breakfast or lunch dish.

potato torte

About this recipe

I love recipes like this, easy, delicious, and perfect for any time of the year or the day. This potato tart with sweet potatoes and red onion is perfect if you dislike mashed potatoes or need a delicious side dish.

slices of potatoes, sweet potatoes and red onion

How to make a savory sweet potato tart?

It is as easy as thinly slicing potatoes, sweet potatoes, and red onion. Then seasoning with salt, rosemary, and olive oil.

The next step is to layer the potatoes, sweet potatoes, and onion in a cast iron pan, finish it by drizzling it with olive oil, and then popping it into the oven.

Different Variations

  • You can make it just with potatoes and red onions, but I like to add the nutritional powers of sweet potatoes. And, if we put the two together, we have a delicious, powerful, healthy, easy-to-prepare potato tart
  • I like to use red onions in this recipe, but any type will work. Use Vidalia onions; yellow onions or even white onions work great here.
  • Same with the dried herbs, feel free to use thyme or oregano; even herbs de Provance will do wonders in this recipe.
potato torte in a cast iron skillet

Tips to make the perfect crustless potato tart

  • A good tip to make this dish would be to cut all the vegetables with a similar thickness. Use a sharp knife, a food processor, or a mandoline to make the cuts as even as possible.
  • This potato tart takes some time in the oven, so plan ahead.
  • This vegan potato casserole is, at its best, freshly made.
  • Store the leftovers in an airtight container in the fridge; it will last 3 days.

What to serve with it?

For lunch. If you serve this dish as lunch, serve it with a delicious salad and soup. That would be a well-balanced vegan meal.

For dinner. Serve as a side dish for the vegan meatloaf or vegan meatballs. It would also be delicious with a good chopped salad.

How to transform the leftovers

The best way I have found to transform the leftovers is by making potato soup, flautas, or tacos dorados.

You could also do scramble eggs with it. Chop the vegetables and mix with a whipped egg -we use Just Egg, which is vegan. Then make tacos and serve with a good salsa verde.

plato con una rebana de tarta de papas

Here are other potato recipes: potatoes with chipotle and lime juice, perfect as appetizers. Roasted potatoes with pico de gallo salad, perfect picnic salad.

Potato tart

Alejandra Graf
This potato tart with onion and sweet potato is one of the easiest recipes there is. I love it because it serves as a side dish, and it is also perfect for lunch if you serve it with a good salad.
5 de 1 voto
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Course Side Dish
Cuisine American
Servings 8 servings
Calories 72 kcal


  • Sharp knife
  • 1 10-in cast iron pan


  • 1 medium red onion sliced
  • 2 large ​potatoes sliced. Yukon or Russet are best.
  • 2 large sweet potatoes sliced
  • a sprig of rosemary
  • salt
  • olive oil


  • Preheat the oven to 350ºF.
  • Slice the potato, onion, and sweet potato. Use a mandolin, a food processor, or a knife. Try to achieve even thickness on all three vegetables.
    Season them with oilive oil and a good pinch of salt
  • To assemble the tart, put a teaspoon of olive oil in the bottom of a cast-iron pan or baking dish. Then a layer of sliced potatoes, sprinkle some salt, rosemary, and half a teaspoon of olive oil.
  • Do the same with the onion layer and the sweet potatoes layer until you are done. Finish with a potato layer.
  • Cover and bake until you stick a fork to the potatoes and offer no resistance; this means they are perfectly cooked.
    Uncover and bake until the top layer is golden and delicious.


Calories: 72kcalCarbohydrates: 17gProtein: 1gFat: 0.1gSaturated Fat: 0.02gPolyunsaturated Fat: 0.01gMonounsaturated Fat: 0.002gSodium: 42mgPotassium: 281mgFiber: 3gSugar: 4gVitamin A: 10688IUVitamin C: 3mgCalcium: 27mgIron: 0.5mg
Keyword potato dish, sliced potatoes, vegan potato scallops


Nutritional information of this recipe is only an estimate, the accuracy for any recipe on this site is not guaranteed.

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