Pesto Mashed Potatoes Au Gratin

Meet your new comfort food obsession: Pesto Mashed Potatoes Au Gratin! Creamy mashed potatoes blended with vibrant pesto, layered with gooey cheese, and topped with crispy bread crumbs. This dish is perfect for family dinners or special occasions, adding a deliciously sophisticated twist to classic comfort food.

Pesto mashed potatoes au gratin in a casserole dish with a scoop of the gratin on a serving spoon.

Creamy Potato Side Dish

If you’re on the hunt for a side dish that combines comfort and sophistication, look no further. Pesto Mashed Potatoes Au Gratin takes your classic mashed potatoes to the next level.

The rich, creamy texture of the potatoes pairs beautifully with the fresh, herby flavor of pesto. Add in some gooey, melted cheese and a crispy bread crumb topping, and you’ve got a dish that’s perfect for any occasion.

Whether it’s a cozy family dinner, a festive holiday feast, or a casual potluck with friends, this recipe is sure to impress. Plus, it’s super easy to make, which means more time enjoying and less time cooking.

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Pesto Mashed Potatoes Au Gratin Pinterest pin image with the title text and photo of the gratin in a baking dish.

Why You’ll Be Coming Back For Seconds


  • Top Notch Flavor: Creamy potatoes meet vibrant pesto and gooey cheese – it’s a match made in food heaven.
  • Easy Peasy: Simple steps and ingredients make this an impressive yet no-fuss side dish.
  • Crowd Pleaser: Perfect for potlucks, family dinners, or any time you want to wow your guests. A great choice for Easter, Mother’s Day, and other holiday celebrations.
  • Texture Perfection: Cheesy, creamy layers topped with crispy bread crumbs – a delightful crunch in every bite!

Looking for more easy yet elegant seasonal side dishes? Be sure to try our buttered new potatoes with dill and lemon, our roasted carrots and asparagus with tarragon, our spicy-sweet maple Sriracha Brussels sprouts, our zesty Italian roasted vegetables, and our savory charred broccolini with lemon, garlic, and parmesan.

Key Ingredients

*Find the full printable recipe with specific measurements below.

Ingredients for pesto mashed potatoes au gratin laid out on a marble counter in small bowls and ramekins.

Party Tip: Prepare Ahead!

Hosting a gathering? Save time by assembling your Pesto Mashed Potatoes Au Gratin the day before. Just add the bread crumbs and bake right before serving for a stress-free, delicious side dish that will wow your guests!

Recipe Roadmap with Images

1

Preheat And Prep

Preheat oven to 375°F (190°C) and grease a baking dish.

2

Boil Potatoes

Boil potatoes in salted water until tender (about 15 mins). Drain and mash with butter.

3

Mix in Cream

Mix in heavy cream, salt to taste, and pesto.

4

Layer And Cheese

Layer half the potato mix in the dish. Dot with cream cheese and sprinkle with Parmesan. Repeat.

5

Add Topping

Toss bread crumbs with olive oil, then sprinkle on top.

6

Bake

Bake for 30 mins until crumbs are toasted and cheese is melted.

Recipe Tips

  • Perfect Potatoes: Use Yukon Gold or Russet potatoes for the creamiest mash. They have the ideal starch content for a fluffy texture.
  • Pesto Perfection: For the best flavor, use homemade pesto or a high-quality store-bought brand. Fresh basil makes a big difference!
  • Cheese Choices: Grate your own Parmesan for better melting and flavor. Pre-grated cheese often contains anti-caking agents that affect texture.
  • Season Wisely: Taste your potato mixture before adding salt. Pesto can be quite salty, so adjust accordingly to avoid over-seasoning.
  • Browning Control: If the bread crumbs start to brown too quickly, cover the dish with foil. This will protect the topping while allowing the potatoes to cook through and the cheese to melt perfectly underneath.

Perfect Pairings

These creamy, cheesy Pesto Mashed Potatoes Au Gratin would pair wonderfully with a variety of main dishes:

Seafood: The vibrant pesto and creamy potatoes go wonderfully with grilled or baked fish, shrimp, or scallops. Try serving them with this easy baked Herb-Crusted Cod with Lemon and Panko. Or try pairing it with our Pesto Butter Salmon or Basil Pesto Crusted Salmon recipes.

Grilled or Roasted Meats: Complement the rich, herby flavors with grilled chicken, pork chops, or a perfectly roasted leg of lamb. Consider pairing these potatoes with our fragrant Lavender Herb Butter Roasted Chicken or our Pork Tenderloin with Balsamic Strawberry Sauce.

Pesto mashed potatoes in a baking dish, au gratin-style with breadcrumb topping.

Barbecue: Add them to a barbecue spread with smoked brisket, BBQ chicken and ribs, or pulled pork for a deliciously comforting side.

Salads: Serve alongside salads that feature arugula, asparagus, and other spring greens. Try pairing with our Spinach and Arugula Salad with Shaved Parmesan and our Lemony Green Bean Salad with Goat Cheese.

Did you make this recipe? Please leave a rating in the comments below and let us know how it turned out. Your feedback is important to us. Thank you for visiting Maplevine Kitchen!

FAQs

Yukon Gold or Russet potatoes are ideal for their creamy texture.

Absolutely! Store-bought pesto works well and saves time. Just pick a quality brand you love.

Sure! Mozzarella, Gruyère, or even cheddar can be great substitutes or additions to Parmesan and cream cheese.

Yes, you can assemble it a day ahead. Keep the bread crumbs separate and add them just before baking.

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Pesto Mashed Potatoes Au Gratin Recipe

Meet your new comfort food obsession: Pesto Mashed Potatoes Au Gratin! Creamy mashed potatoes blended with vibrant pesto, layered with gooey cheese, and topped with crispy bread crumbs. This dish is perfect for family dinners or special occasions, adding a deliciously sophisticated twist to classic comfort food.
By: AllieAllie Cleveland
No ratings yet
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Side Dish
Cuisine American
Servings 6 -8
Calories 473 kcal

Equipment

  • 1 baking dish (I used a 10.5 by 7.5-inch dish. A 9×9-inch square baking dish would also work, but a 9×13 will be too big.)

Ingredients
  

  • 2 pounds potatoes peeled and quartered
  • 4 tablespoons unsalted butter
  • ½ cup heavy cream
  • salt to taste (depending on how salty your pesto is)
  • cup pesto homemade or pick your favorite
  • ½ cup Parmesan cheese freshly grated
  • ½ cup cream cheese softened
  • cup bread crumbs
  • 2 tablespoons extra virgin olive oil

Instructions
 

  • Start off by heating your oven to 375°F (190°C) and greasing a baking dish.
  • Boil the potatoes in salted water until they’re tender — a fork should slide in easily, about 15 minutes.
  • Drain the potatoes well, mash them with butter until you’ve got a smooth consistency.
  • Mix in the heavy cream and add a little salt to taste (depending on how salty your pesto is). Then, blend in that beautiful pesto.
  • Spread half of the potato mixture into your prepared dish. Dot with half of the cream cheese and sprinkle with half of the Parmesan. Then repeat the process once more and layer on the remaining potatoes, dot again with the remaining cream cheese, and the rest of the Parmesan.
  • In a small bowl, toss the bread crumbs with olive oil until they’re all coated, then scatter them evenly over the top of your gratin.
  • Bake for about 30 minutes, or until the bread crumbs are toasted and the cheese is melty and slightly browned. If the top starts to brown too quickly, cover the dish with some foil.
  • Let it sit for a few minutes after taking it out of the oven — it’s going to be hot and bubbly!

Recipe Notes

Make-Ahead Tips

Planning a party or holiday meal? Pesto Mashed Potatoes Au Gratin is a great dish to prepare in advance. Here’s how to do it:
  • Prep Ahead: Prepare the mashed potatoes, mix in the pesto, and layer with cheese as instructed. Cover and refrigerate for up to 24 hours.
  • Bread Crumb Topping: Keep the bread crumb mixture separate and store in an airtight container. Just before baking, sprinkle the crumbs on top.
  • Bake When Ready: When you’re ready to serve, take the dish out of the fridge and let it come to room temperature for about 30 minutes. Add the bread crumbs and bake as directed, adding an extra 5-10 minutes to the baking time if needed.

 

Leftovers and Storage

  • Storage: Transfer any leftovers to an airtight container and refrigerate for up to 3 days.
  • Reheating: To reheat, cover the dish with foil and bake at 350°F (175°C) for 15-20 minutes, or until heated through. For a crisp topping, uncover for the last 5 minutes.
  • Freezing: This dish can be frozen before baking. Wrap tightly with plastic wrap and foil, and freeze for up to 1 month. Thaw in the fridge overnight before baking as directed.

Nutrition

Calories: 473kcal | Carbohydrates: 37.1g | Protein: 10.1g | Fat: 32.3g | Cholesterol: 68.7mg | Sodium: 484.5mg | Fiber: 3.1g | Sugar: 3.6g

*Nutritional information is provided as a courtesy only and should be construed as an estimate rather than a guarantee. Ingredients can vary and Maplevine Kitchen makes no guarantees to the accuracy of this information.

Keyword holiday side dish, pesto, potatoes, spring side dishes
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