Vegan Potatoes au Gratin

5 from 1 vote
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The Produce Moms is proud to partner with the Produce for Better Health (PBH) Foundation to celebrate Plants-Giving! Whether you’re going vegan or just want to include more plant-based dishes in your meal, you can make a Thanksgiving feast without the meat. #HaveAPlant 

Want to impress family and friends the next time you find them gathered around your dinner table? Leave the animal products at the store! You can use fresh, delicious produce to create a restaurant quality dish that will have your guests talking. We’ve done just that with these cheesy, savory Vegan Potatoes au Gratin, an entirely meatless and dairy-free dish. Serve them up at your next gathering!

How to Make Vegan Potatoes au Gratin

Cheesy potatoes are a family favorite any time of year, but these Vegan Potatoes au Gratin take it up a notch. Elevate any occasion with this dish that’s both refined and addicting. Whether you’re serving a weeknight dinner or hosting a holiday feast, your friends and family won’t be able to get enough of these tasty taters.

A tasty dish that's friendly to dietary restrictions

And with vegan ingredients, more of them can enjoy this dish, too! These Vegan Potatoes au Gratin are both gluten- and dairy-free, making them friendly to many diners with dietary restrictions. Not only will this dish become a new favorite, it will be one you can feel good about serving, too.

This dish takes some prep work, but it’s so, so worth it. You’ll start by preparing the vegan cheese sauce by mixing the ingredients in a saucepan. When your “cheese” is ready, it’s time to prep the potatoes. Spread them out in a baking dish and layer them with yellow onions before pouring the vegan cheese sauce over them. Now bake them in the oven, pulling them out midway through to sprinkle some vegan mozzarella cheese over them!

5 from 1 vote

Vegan Potatoes au Gratin

A meatless, gluten- and dairy-free dish that's cheesy, savory, and perfect for celebrations of all kinds.
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour


Vegan Cheese Sauce

  • 1 tbsp coconut oil
  • 3 cloves garlic minced
  • 2 tbsp corn starch
  • 1 pinch kosher salt
  • 1 cup vegetable broth
  • 1 1/2 cups almond milk
  • 1/2 cup nutritional yeast
  • 1 tsp yellow mustard


  • 1 1/2 lbs Yukon gold potatoes sliced thinly
  • 1 small yellow onion
  • Salt and pepper to taste
  • 1 cup vegan mozzarella-style shreds


  • Preheat oven to 425 degrees.
  • Make the cheese sauce: Heat the coconut oil in a small saucepan. Add garlic and cook for 2 minutes, stirring occasionally. Mix corn starch and vegetable broth together in a liquid measuring cup until all the corn starch is dissolved. Pour into the saucepan while whisking. Slowly add the almond milk, salt, nutritional yeast, and mustard to the saucepan, whisking until creamy. Remove from heat. 
  • Lightly grease a 9 x 13 baking dish. Spread half of the sliced potatoes out in an even layer. Season with kosher salt and black pepper. Add a layer of yellow onion. Repeat this process until all of the potatoes and onions have been added. 
  • Pour the vegan cheese sauce evenly over the potatoes and onions. 
  • Cover with aluminum foil and bake for 30 minutes. 
  • Uncover and top with vegan mozzarella-style shreds. Bake an additional 15 minutes until the cheese is melted and beginning to brown. 


Calories: 159kcal | Carbohydrates: 24g | Protein: 4g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 336mg | Potassium: 439mg | Fiber: 3g | Sugar: 2g | Vitamin A: 65IU | Vitamin C: 18mg | Calcium: 82mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Side Dishes
Cuisine: French
Calories: 159
Keyword: dairy free, holiday recipe
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#HaveAPlant At Your Next Gathering

We love these Vegan Potatoes au Gratin served alongside green bean casserole, cranberry sauce, pumpkin pie, and other Thanksgiving favorites. But they make a delicious homestyle dish any time of year! Whether you’re cooking for Thanksgiving or another occasion, this recipe will help you add more produce to your table in an accessible, diet-friendly way. That’s the mission of the Produce for Better Health Foundation!

Entirely meatless and dairy-free!

No matter the time of year, PBH is dedicated to helping people include more fruits and veggies in their diets. Their informative guides and recipes will make it easy for you to choose the produce you want and cook it into something you’ll love to eat. PBH and The Produce Moms was a match that just made sense! We’re thrilled to support their goal and help you find new ways to #HaveAPlant.

If you’re looking for more autumn flavors from PBH and The Produce Moms, check out our Pumpkin Pie Jello Shots and our roundup of 15 Recipes to Celebrate Fall!

Were these Vegan Potatoes au Gratin a delicious addition to your meal? What did your family and friends have to say about these irresistibly cheesy spuds? Tell us how they went over in the comments below!

Vegan Potatoes au Gratin Pin

About Lori

Lori Taylor is the Founder & CEO of The Produce Moms. For ten years she sold fresh produce to over 300 grocery stores throughout the United States, and today she is fully focused on working with the produce supply chain, media, and government to increase fresh produce access & consumption in the US and around the globe. Connect with Lori on LinkedIn.

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