American Breakfast and Brunch

Sausage Leek Potato Dijon Mustard Hash Recipe

Crispy golden potatoes, savory sausage, and silky braised leeks come together in one skillet with a tangy Dijon glaze that makes this hash absolutely impossible to stop eating.

Close your eyes and picture a cast iron skillet pulled straight from a hot stove, crackling and golden at the edges, filled with cubes of potato crisped in rendered sausage fat, soft ribbons of leek that have soaked up every bit of savory flavor in the pan, and chunks of browned sausage scattered throughout. Now imagine all of that finished with a glossy, tangy Dijon mustard glaze that cuts right through the richness and ties every single element together. That is this hash. It is the kind of breakfast or dinner that smells so incredible while it is cooking that people will wander into the kitchen and hover around the stove, waiting impatiently for their plate.

This recipe is made for mornings when you want a real breakfast that actually sticks with you, weekend brunches where you want to put something impressive on the table without a lot of separate components, or easy weeknight dinners when one skillet is all you have the energy for. It comes together entirely in one pan, which keeps cleanup minimal, and the combination of protein, starch, and vegetables means it is a complete meal without needing much else alongside it. It is the kind of recipe that works any time of day, adapts to whatever sausage you have on hand, and makes excellent leftovers if you are lucky enough to have any.

Hash has always been one of those recipes that sounds simple but can go either way depending on how you cook it. I spent years making versions that came out soggy or underseasoned, and the turning point was twofold: letting the potatoes cook undisturbed long enough to actually develop a crust, and adding Dijon mustard at the end to create that deeply savory, slightly tangy glaze that makes the whole thing taste finished and intentional rather than thrown together. Once I landed on this version, it became the most-requested thing I make, and I genuinely could not be happier about that.

Recipe at a Glance

⏱Prep Time15 mins

🔥Cook Time35 mins

🕐Total Time50 mins

🍰Servings4 servings

🇺🇸CuisineAmerican

🔢Calories~520 per serving

Ingredients

Hash Base

1 lb Yukon Gold potatoes, cut into 1/2-inch cubes (no need to peel)

12 oz smoked sausage or kielbasa, sliced into 1/4-inch rounds

2 large leeks, white and light green parts only, halved lengthwise and sliced into 1/2-inch half-moons

1 tablespoon olive oil

1/2 teaspoon kosher salt, plus more to taste

1/4 teaspoon black pepper

1/4 teaspoon smoked paprika

1/4 teaspoon garlic powder

Dijon Mustard Glaze

2 tablespoons whole grain Dijon mustard

1 tablespoon smooth Dijon mustard

1 tablespoon apple cider vinegar

1 teaspoon honey

2 tablespoons low-sodium chicken broth or water

1 small garlic clove, finely grated

Garnish

2 tablespoons fresh flat-leaf parsley, roughly chopped

1 teaspoon fresh thyme leaves (or 1/4 teaspoon dried)

Flaky sea salt, for finishing

Substitutions & Variations

★Italian sausage, chorizo, or chicken apple sausage can all replace the smoked kielbasa and will each bring a distinct personality to the dish, from spicy to sweet.

★Sweet potatoes make a wonderful swap for Yukon Golds and add a slightly earthy sweetness that pairs beautifully with the tangy Dijon glaze.

★If leeks are not available, a large sweet onion or two shallots cut into thin rings will work well in their place, though leeks bring a more delicate, buttery sweetness that is really worth seeking out.

★For a spicier version, stir a teaspoon of whole grain mustard with sriracha or a pinch of cayenne pepper into the Dijon glaze before adding it to the pan.

★To make this dish dairy-free and gluten-free, simply confirm your sausage brand is gluten-free, as most smoked kielbasa naturally qualifies, and use water instead of chicken broth in the glaze.

Step-by-Step Instructions

1

Par-Cook the Potatoes

Place the cubed potatoes in a medium saucepan and cover with cold salted water by about an inch. Bring to a boil over high heat, then reduce to a steady simmer and cook for 6 to 7 minutes until the potatoes are just barely tender when pierced with a fork but still hold their shape firmly. You want them about 70 percent cooked through at this stage. Drain them thoroughly and spread on a clean kitchen towel or paper towels to steam dry for at least 3 to 4 minutes. Dry potatoes brown and crisp much more effectively than wet ones.

2

Mix the Dijon Glaze

While the potatoes drain and dry, whisk together both Dijon mustards, apple cider vinegar, honey, chicken broth, and grated garlic in a small bowl until smooth and combined. Taste the glaze on a spoon and make sure you can taste the tang, the savory depth, and just a hint of sweetness. Set it nearby so it is ready to go the moment you need it. Having this prepared in advance makes the final stage of cooking move quickly and smoothly.

3

Brown the Sausage

Heat a large cast iron skillet or a heavy-bottomed stainless steel skillet over medium-high heat. Add the sliced sausage in a single layer and cook without stirring for 2 to 3 minutes until deeply browned on the bottom. Flip the slices and cook for another 1 to 2 minutes on the second side. The goal is a good caramelized crust on each piece, which adds enormous flavor to the whole dish. Transfer the browned sausage to a plate using a slotted spoon, leaving all the rendered fat in the pan.

4

Crisp the Potatoes

Add the olive oil to the sausage fat already in the pan and heat over medium-high until shimmering. Add the dried potato cubes in a single layer. Season with the kosher salt, black pepper, smoked paprika, and garlic powder. Let the potatoes cook completely undisturbed for 5 to 6 minutes. Resist the urge to stir them. This is the most important step for achieving a truly crispy, golden-brown crust on each cube. Once the bottoms are deeply golden, toss and let the other sides crisp for another 4 to 5 minutes.

5

Clean and Prep the Leeks While Potatoes Cook

While the potatoes are crisping, make sure your leeks are thoroughly cleaned. Leeks trap sand and dirt between their layers, so after slicing them, place the half-moons in a bowl of cold water and swish them around vigorously. The grit will sink to the bottom. Lift the leeks out with your hands or a slotted spoon, leaving the dirty water behind, and pat them dry with paper towels before they go into the pan.

6

Cook the Leeks

Once the potatoes are nicely crisped and golden, push them to the outer edges of the skillet to create space in the center. Reduce the heat to medium and add the cleaned, dried leeks to the center of the pan. Cook the leeks, stirring occasionally, for 5 to 6 minutes until they are completely softened, lightly golden at the edges, and have reduced significantly in volume. Season lightly with a pinch of salt. The leeks should look almost silky and smell sweet and savory all at once.

7

Return the Sausage to the Pan

Add the browned sausage back into the skillet and toss everything together so the potatoes, leeks, and sausage are evenly distributed throughout the pan. Cook together for 2 minutes, stirring occasionally, so all the elements warm through and the flavors begin to meld. Taste the hash at this point and adjust salt and pepper as needed before adding the glaze.

8

Add the Dijon Glaze

Pour the prepared Dijon glaze evenly over the contents of the skillet. Stir everything together to coat the sausage, potatoes, and leeks thoroughly. Continue cooking over medium heat for 2 to 3 minutes, tossing occasionally, until the glaze reduces slightly, clings to every piece in the pan, and the smell of tangy mustard and caramelized sausage fills your kitchen. The hash should look glossy and deeply savory, not wet or soupy.

9

Finish and Serve

Remove the skillet from the heat and scatter the fresh parsley and thyme leaves over the top of the hash. Finish with a pinch of flaky sea salt for a little burst of texture and seasoning in every bite. Serve the hash directly from the skillet for the best presentation and to keep everything hot while everyone gets settled at the table.

Pro Baker Tips

✓Par-boiling the potatoes before pan-frying them is the single most effective technique for getting a crispy exterior with a creamy, fully cooked interior in a reasonable amount of time.

✓Drying the potatoes thoroughly after par-boiling is just as important as the initial cooking. Steam is the enemy of crispiness, and a damp potato will never brown the way you want it to.

✓Cast iron is ideal for this recipe because it retains and distributes heat evenly, which is exactly what you need for a consistently golden crust on the potatoes.

✓Do not stir the potatoes during their first 5 to 6 minutes of pan time. Patience here is what separates a genuinely crispy hash from a soft, disappointing one.

✓Using both whole grain and smooth Dijon in the glaze gives you two layers of mustard flavor: the sharp, tangy punch from the smooth variety and the textural pop and more complex depth from the whole grain.

✓Leeks can hold an extraordinary amount of grit, so the cold water washing step is not optional. Skipping it will result in a gritty bite in the finished dish, which is not worth the time saved.

Storage & Serving Notes

◆Store leftover hash in an airtight container in the refrigerator for up to 4 days. The potatoes will soften overnight but the flavor actually deepens as it sits.

◆To reheat, spread the hash in a single layer in a skillet over medium-high heat with a small drizzle of oil and cook without stirring for 3 to 4 minutes until the potatoes crisp back up. This is far superior to microwaving.

◆If reheating in the microwave for convenience, cover loosely and heat in 60-second intervals, stirring between each, to warm evenly without drying out.

◆The Dijon glaze can be made up to 5 days in advance and stored in a sealed jar in the refrigerator, making this an easy recipe to partially prep ahead of time.

◆This hash can be frozen in an airtight container for up to 2 months, though the texture of the potatoes will be softer after freezing and thawing. Reheat from frozen in a covered skillet over low heat, then uncover and increase to medium-high to re-crisp.

Serving Suggestions

This hearty skillet hash is a complete meal on its own, but a few simple additions make it feel even more special.

›Top each serving with a fried or poached egg for a classic breakfast hash presentation with a runny yolk that becomes its own sauce

›Serve alongside a lightly dressed arugula salad with lemon vinaigrette for a peppery, refreshing contrast to the rich hash

›Offer a small dollop of sour cream or whole grain mustard on the side for extra creaminess and tang

›Pair with a thick slice of crusty sourdough toast to scoop up every bit of the Dijon glaze left in the pan

›Serve as a hearty dinner alongside a simple green salad and a cold glass of hard cider or a light lager

Frequently Asked Questions

Do I really need to par-cook the potatoes first?

Yes, and it makes a significant difference. Raw potato cubes take a very long time to cook through in a skillet, and by the time the center is tender, the outside is often overcooked and burnt. Par-boiling for 6 to 7 minutes gives you a head start so the potatoes finish cooking quickly in the pan and still develop that essential crispy exterior. It adds about 10 minutes to the process but the result is incomparably better.

Can I use a different type of mustard if I do not have Dijon?

Dijon is strongly recommended because its smooth, tangy profile is what makes the glaze so distinctive, but if you only have yellow mustard on hand, it will work in a pinch. The flavor will be sharper and less complex, so reduce the amount to about 2 tablespoons total and add an extra half teaspoon of honey to round it out. Whole grain mustard on its own, without any smooth Dijon, also makes a delicious and more texturally interesting glaze.

Can I make this hash ahead of time for meal prep?

Absolutely. Cook the full recipe as directed, let it cool completely, and portion it into airtight containers in the refrigerator for up to 4 days. For the best texture when reheating, use a hot skillet rather than a microwave. You can also prep the components separately, storing par-cooked potatoes, browned sausage, and cooked leeks in the fridge for up to 3 days, and then finish the hash fresh in a hot pan whenever you are ready to eat.

What kind of sausage works best in this hash?

Smoked kielbasa or andouille are the top choices because their pre-cooked nature means you are focusing entirely on developing a golden-brown sear rather than cooking the sausage through. Italian sausage (removed from its casing and crumbled) works beautifully if you prefer a more herby flavor. Chicken or turkey sausage can lighten things up. Whatever you choose, look for a sausage with good fat content since some of that rendered fat is what you use to crisp the potatoes.

My hash is sticking to the pan. What should I do?

Sticking usually means one of two things: the pan was not hot enough before adding the potatoes, or the potatoes were not dry enough before going into the pan. If you notice sticking, resist the urge to force the potatoes up with a spatula. Give them another minute or two and they will release naturally once the crust has formed. If the pan seems genuinely too dry, add a small drizzle of oil around the edges and let it heat through before gently sliding a spatula underneath.

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Go Make It!

This sausage leek potato Dijon mustard hash is the kind of recipe that earns a permanent spot in your regular rotation after the very first time you make it. It is deeply satisfying, endlessly adaptable, and built entirely in one pan with ingredients that are easy to keep on hand. Whether you make it for a lazy Saturday morning, a quick Sunday dinner, or a week of meal-prepped lunches, it delivers every single time. Get that skillet hot, give the potatoes the time they need to crisp up, and do not skip the Dijon glaze because that is where the real magic lives.