June 15, 2026 · 40 min

Pan-Seared New York Strip Steak with Truffle Mashed Potatoes and Almond Green Beans

Dinner40 min1066 cal / serving

This New York strip steak dinner brings together a seared, juicy steak, a glossy shallot-peppercorn pan sauce and creamy Yukon Gold mashed potatoes scented with truffle oil.

Roasted green beans tossed with almonds add crunch and freshness, making the plate feel elegant without requiring complicated techniques.


Recipe details

Dinner40 min1066 cal / serving2 servings

Nutrition per serving

Calories1066 kcalProtein58.4 gFat67.9 gCarbs53.7 gSugar15.4 gFiber4.6 gSodium1261 mg

Dietary labels

Gluten-free: yesLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: not detectedMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: containsSoy: not detectedSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Yukon Gold Potatoes12 ounce Yukon Gold PotatoesView ingredient guide
Parsley0.25 ounce ParsleyView ingredient guide
Shallot1 unit ShallotView ingredient guide
Green Beans6 ounce Green BeansView ingredient guide
Beef Demi-Glace1 unit Beef Demi-GlaceView ingredient guide
Sour Cream4 tablespoon Sour CreamView ingredient guide
Truffle Oil0.5 teaspoon Truffle OilView ingredient guide
Almonds1 ounce AlmondsView ingredient guide
Vegetable Oil3 teaspoon Vegetable OilView ingredient guide
Butter1 tablespoon ButterView ingredient guide
SaltSaltView ingredient guide
PepperPepperView ingredient guide

Instructions

  1. Wash and dry the produce. Preheat the oven to 425°F.
  2. Peel the Yukon Gold potatoes and cut them into 1/2-inch cubes. Add them to a medium pot with a generous pinch of salt and enough water to cover by 1 inch. Bring to a boil and cook until the potatoes are easily pierced with a knife, 12 to 15 minutes. Drain, then return the potatoes to the pot.
  3. Coarsely crush the tricolor peppercorns with a mallet or the bottom of a heavy pan. Finely chop the parsley. Peel, halve and chop the shallot.
  4. Place the green beans on a baking sheet. Toss with a drizzle of vegetable oil and a pinch each of salt and pepper. Roast until tender, 12 to 15 minutes.
  5. Heat a drizzle of vegetable oil in a large pan over medium-high heat. Pat the New York strip steak dry with paper towels, then season all over with salt and pepper.
  6. Add the steak to the hot pan and cook to your desired doneness, 3 to 6 minutes per side. Transfer the steak to a cutting board or plate and let it rest.
  7. Reduce the heat under the same pan to medium-low and add another drizzle of vegetable oil. Add the chopped shallot and cook, tossing, until softened, 1 to 2 minutes.
  8. Stir in 1/4 teaspoon crushed peppercorns, using more or less to taste, along with the beef demi-glace and 1/2 cup water. Bring to a boil, then reduce the heat and simmer until slightly reduced, 2 to 3 minutes.
  9. Remove the pan from the heat. Stir in 1 tablespoon butter and half of the sour cream until the butter melts and the sauce is smooth. Season with salt and pepper.
  10. Add the remaining sour cream and 1/2 teaspoon truffle oil to the drained potatoes. Mash with a potato masher or fork until smooth. Season to taste with salt and pepper.
  11. Thinly slice the rested steak against the grain. Toss the roasted green beans with the almonds.
  12. Divide the truffle mashed potatoes, almond green beans and sliced steak between plates. Spoon the peppercorn sauce over the steak and potatoes, then garnish with chopped parsley.

Recipe Tips

Patting the steak dry before searing helps it brown better in the pan.

Use the crushed peppercorns to taste; they add bold peppery heat to the sauce.

Truffle oil is potent, so start with the listed amount and adjust only if you want a stronger truffle flavor.

Let the steak rest before slicing so the juices redistribute.

For an extra-creamy mash, add a small splash of milk while mashing if desired.

FAQ

How long should I cook the New York strip steak?

Cook it in a hot pan for 3 to 6 minutes per side, depending on your preferred doneness and the thickness of the steak.

Can I use more truffle oil in the mashed potatoes?

Yes. The recipe uses 1/2 teaspoon, but you can add a little more or less to taste since truffle oil has a strong flavor.

Why slice the steak against the grain?

Slicing against the grain shortens the muscle fibers, which makes each bite feel more tender.

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