If you adore all things comforting and crave-worthy, then you are absolutely going to fall in love with this Slow Cooker Corned Beef Hash Au Gratin Recipe. It’s the perfect marriage of tender diced corned beef, silky potatoes, and a luscious creamy-cheese sauce that bubbles away all day in your slow cooker. Imagine coming home to a warm, hearty dish that feels like a hug on a plate—this recipe makes that dream a reality with minimal effort and loads of flavor.

Ingredients You’ll Need

The image shows a neatly arranged collection of ingredients on a white marbled surface. There is a basket filled with several whole brown potatoes to the upper right. Below the potatoes, a single whole onion is placed. At the bottom right, a large piece of raw red meat with some white fat edges rests on black packaging. To the left of the meat, there are two blocks of sliced cheese with visible seasoning. Above the cheese, there are four small white bowls containing different liquids and spices: from left to right, an orange-red sauce, a dark brown sauce, a reddish sauce, and a brown spice mix. At the top left, there is a red measuring cup filled with a light orange liquid, and next to it is a white and red container of tomato sauce. photo taken with an iphone --ar 4:5 --v 7

These ingredients are wonderfully simple but essential to crafting the perfect texture and taste in your Slow Cooker Corned Beef Hash Au Gratin Recipe. Each one plays a starring role, balancing creamy richness, meaty savor, and the cozy heartiness of potatoes.

Diced corned beef: Provides the rich, salty, tender star of the dish that makes it uniquely satisfying.
Diced potatoes: Bring that fluffy, comforting base that soaks up all the delicious flavors.
Shredded cheese: Adds a gooey, melty, golden finish that gives this dish its “au gratin” charm.
Cream of chicken soup: Creates a creamy, velvety sauce that melds everything together beautifully without fuss.

How to Make Slow Cooker Corned Beef Hash Au Gratin Recipe

Step 1: Layer Your Ingredients

Start by adding the diced potatoes, corned beef, and cream of chicken soup into the slow cooker. This simple layering is the foundation of flavor and texture as the slow cooker works its magic.

Step 2: Let It Slow Cook

Set your slow cooker on LOW and let the ingredients meld slowly for 6 to 8 hours. This long, gentle cooking time tenderizes the potatoes and infuses the beef with the creamy, savory sauce, combining everything into a heavenly comfort dish.

Step 3: Add the Cheese

Around the time you’re ready to eat, stir in the shredded cheese. This step is what transforms the dish into an indulgent au gratin, giving you a melty, luscious finish that’s downright irresistible.

Step 4: Optional Broiler Finish

If you want that perfect golden crust on top, transfer the hash to a baking dish and pop it under the broiler for a few minutes. Watch closely so it crisps just right without burning.

How to Serve Slow Cooker Corned Beef Hash Au Gratin Recipe

The dish shows a white bowl filled with cooked potato slices in creamy sauce, layered with small pieces of browned sausage and translucent sautéed onion slices. The potato slices are soft and coated with the sauce, garnished with chopped green herbs on top. A metal fork is placed on the bowl's right edge, and the bowl is sitting on a white marbled surface with a white and black cloth napkin partially visible nearby. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Add a fresh pop of color and taste with some chopped green onions or flat-leaf parsley sprinkled on top. A few crispy fried shallots would also add a delightful crunch that contrasts perfectly with the creamy, soft hash.

Side Dishes

This dish is comforting enough to stand on its own, but pairing it with a simple green salad or some steamed veggies balances the richness and rounds out the meal beautifully. Pickled red cabbage or a tangy mustard slaw can add an exciting zest to the plate as well.

Creative Ways to Present

Serve the hash in individual ramekins for a charming, cozy presentation at brunch or dinner. You can also top it with a poached or fried egg to add an extra layer of indulgence that’s perfect for breakfast-for-dinner nights.

Make Ahead and Storage

Storing Leftovers

Once cooled, store any leftovers in an airtight container in the refrigerator. This hash au gratin keeps well for up to 3 days, letting you enjoy those wonderful flavors again with minimal effort.

Freezing

You can freeze the leftover corned beef hash in a freezer-safe container for up to 2 months. When ready, thaw it overnight in the fridge before reheating for the best texture and taste.

Reheating

Reheat portions gently in the microwave or in a covered skillet over low heat. Adding a splash of milk or cream while reheating can help maintain that creamy consistency you love about this dish.

FAQs

Can I use frozen corned beef in this Slow Cooker Corned Beef Hash Au Gratin Recipe?

Absolutely! Just be sure to thaw the corned beef completely before adding it to the slow cooker so it cooks evenly and blends well with the other ingredients.

Is there a substitute for the cream of chicken soup?

Yes, if you prefer a homemade touch, you can substitute with a simple white sauce made from butter, flour, milk, and a bit of chicken broth for that creamy base without the canned soup.

How do I make this recipe dairy-free?

To make it dairy-free, swap the shredded cheese with a plant-based melting cheese and use a dairy-free cream soup or a homemade sauce made with coconut or almond milk.

Can I speed up the cooking time?

While slow cooking is key for tender potatoes and rich flavors, you can cook it on HIGH for about 3-4 hours if you’re in a pinch, but the texture may be slightly less creamy.

What’s the best cheese to use for this recipe?

Sharp cheddar or a blend of cheddar and Monterey Jack works wonderfully here, balancing strong flavor and excellent melting quality for that classic au gratin experience.

Final Thoughts

This Slow Cooker Corned Beef Hash Au Gratin Recipe is a soul-satisfying crowd-pleaser that transforms humble ingredients into a dreamy, cheesy delight. Whether for a relaxed weekend brunch or a comforting weeknight dinner, it’s a recipe you’ll want to make again and again. Go ahead, give it a try, and let yourself bask in all that creamy, savory goodness.