Gnocchi Gratin with Ham Recipe

Easy casseroles to make for dinner

It seems dinner time rolls around and I'm always in a rush. Does that happen to you too? That's one of the reasons I love to create quick and easy recipes that anyone can throw together at the last minute.

Less stress means a lot at the end of the day. My usual go-tos are Chicken Broccoli Pasta Casserole and Turkey Enchilada Casserole (usually made with rotisserie chicken) but this creamy gnocchi au gratin casserole just became my favorite number three.

Cheesy gnocchi casserole

This cheesy gnocchi casserole is the perfect way to turn simple ingredients into a spectacular dish. It’s quick and easy to whip up, especially if you’re using store-bought gnocchi and leftover ham.

Plus, the addition of peas gives it a pop of color and a hint of sweetness that balances the rich, creamy sauce. Whether you’re feeding a crowd or looking for a way to reinvent holiday leftovers, this gratin has you covered.

Why you’ll love this recipe

If you’re a fan of creamy, cheesy comfort food, this gnocchi gratin will win your heart! Here are a few reasons why:

Simple to make: With store-bought gnocchi and minimal prep, this casserole is a breeze to throw together.

Great for leftovers: Got leftover ham from a holiday feast? This is the perfect way to use it up.

Comfort food at its finest: Creamy cheese sauce, tender gnocchi, and a crispy panko topping - what more could you want?

Family-friendly: The flavors and textures in this dish. so close to mac and cheese, are sure to be a hit with everyone at the table.

Ingredients

This recipe uses simple, everyday ingredients to create a richly satisfying meal. Here’s what you’ll need to whip it up for dinner.

• Potato gnocchi: Tender pillows of goodness that make this casserole hearty and satisfying.
• Ham: Use diced ham for a savory, salty addition. Leftover ham works perfectly!
• Butter: The base for the rich, creamy sauce.
• All-purpose flour: Helps thicken the sauce.
• Half and half: Makes the sauce creamy without being too heavy.
• Kosher salt and black pepper: Enhance the flavors of the sauce.
• Gruyere cheese: Melts beautifully and adds a nutty, rich flavor.
• Parmesan cheese: Adds a salty, umami punch and creates a golden topping.
• Frozen peas: A sweet and colorful addition that complements the ham and cheese.
• Panko crumbs: For a crunchy, golden topping that contrasts with the creamy filling.

How to make gnocchi gratin

Making this cheesy gnocchi casserole is easier than you might think. Here's what to do:

Gather all the ingredients you need to make this Gnocchi Gratin recipe. Cook gnocchi according to package directions. (I bought mine in the fresh pasta section of my grocery store and just boiled it.) Dice ham, shred cheese and take peas out to thaw.

1. Place cooked gnocchi and ham in a large bowl.
2. In a medium saucepan, melt butter over medium-high. Whisking continuously, stir in flour and cook for 1-2 minutes or until the mixture turns a golden brown.
3. Add in milk while continuing to whisk and bring to a boil. Mixture should be smooth.
4. Remove pan from heat and stir in Gruyère and ¼ cup grated Parmesan. Stir until all cheese is melted and mixture is smooth. Season with salt and pepper.
5. Pour sauce over gnocchi and ham.
6. Stir in peas.

7. Spray an 11x17-inch baking dish with cooking spray and pour the mixture into it.

8. Sprinkle with remaining Parmesan cheese and panko crumbs.

8. Bake at 400°F for 20 minutes. Serve hot with a side salad and/or some crusty bread. Enjoy!

Recipe tips for success

To ensure your gratin turns out perfectly every time, keep these helpful tips in mind. They’ll make the cooking process smoother and the final dish even more delicious:

• Use freshly shredded cheese: Pre-shredded cheese often contains additives that can prevent it from melting smoothly, so shred your Gruyere and Parmesan for the best results.
• Keep the sauce smooth: Whisk continuously while making the cheese sauce to prevent lumps.
• Thaw the peas: Make sure your frozen peas are thawed before adding them to the dish to ensure even cooking.
• Toast the panko: For an extra-crispy topping, lightly toast the panko crumbs in a dry skillet before sprinkling them on top.
• Watch the topping: Check the gratin while it bakes to ensure the panko topping doesn’t burn - golden brown is the goal!

Recipe variations to make it your own

The best part about this recipe is how easy it is to change it up with other ingredients you might have on hand. 

• Don't care for peas? Try broccoli or cauliflower.
• Gruyere cheese too expensive or hard to find? Try Swiss, Comte, Jarlsberg or, for a more distinct flavor, gorgonzola or smoked edam.
• You can make this vegetarian by omitting ham altogether. You could also add in some mushrooms to replace it.
• If you want to sub ham for another meat, try rotisserie chicken or leftover turkey. 
• Whole milk can also be used in place of fat-free half and half. I've also tried it with almond milk which makes the cheese sauce slightly thinner but just as delicious.

What to serve with ham gnocchi gratin

This rich and creamy dish is satisfying on its own, but pairing it with complementary dishes can take your meal to the next level. Whether you’re looking to add some crunch, freshness, or sweetness to the table, here are some great ideas:

• Crusty bread: A warm loaf of homemade bread or garlic bread made in the air fryer is perfect for soaking up that cheesy sauce.
• Simple green salad: A crisp salad with a light vinaigrette balances the richness of the gratin.
• Roasted vegetables: Try roasted asparagus, Brussels sprouts, or carrots for a flavorful side.
• Soup: A light broth-based soup like minestrone or vegetable soup pairs well.
• Dessert: Finish the meal with something light and fruity, like a mini lemon tart or strawberry lemonade sorbet.

How to Store, Freeze, and Reheat Leftovers

Storing Leftovers: Store any leftovers in an airtight container in the refrigerator for up to 3 days.

Freezing Leftovers: Allow the casserole to cool completely before freezing. Store in a freezer-safe container for up to 3 months. For best results, thaw overnight in the refrigerator before reheating.

Reheating Leftovers: Warm individual portions in the microwave or reheat the entire casserole in the oven at 350°F until heated through. To keep the panko topping crispy, cover the dish with foil until the last 5 minutes of reheating.