Pin A hearty, all-in-one meal featuring juicy steak and creamy garlic mashed potatoes roasted together on a single sheet pan for maximum flavor and minimal cleanup.
I first made this sheet pan steak dinner for my family on a busy weeknight and was amazed by how effortless it felt. The combination of tender steak and rich garlic mash won over everyone at the table.
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Ingredients
- Steak: 4 (6 oz / 170 g) boneless sirloin steaks, 2 tbsp olive oil, 1 tsp kosher salt, ½ tsp freshly ground black pepper, 1 tsp smoked paprika, 1 tsp dried thyme
- Garlic Mashed Potatoes: 2 lbs (900 g) Yukon gold potatoes (peeled and cubed), 4 cloves garlic (peeled), ¼ cup (60 ml) heavy cream (or milk for lighter option), 2 tbsp unsalted butter, 1 tsp salt, ½ tsp black pepper
- Vegetables: 1 lb (450 g) green beans (trimmed), 1 tbsp olive oil, ½ tsp salt, ¼ tsp pepper
- Garnish (optional): 2 tbsp chopped fresh parsley
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Instructions
- Preheat Oven:
- Preheat oven to 425°F (220°C). Line a large sheet pan with parchment paper or foil.
- Cook Potatoes & Garlic:
- Place potatoes and garlic in a large saucepan. Cover with water and add a generous pinch of salt. Bring to a boil, then simmer for 12–15 minutes until fork-tender. Drain well.
- Mash Potatoes:
- Return potatoes and garlic to the pot. Add butter, cream, salt, and pepper. Mash until smooth and creamy. Set aside, covered to keep warm.
- Prep Steaks:
- While potatoes cook, pat steaks dry. Rub both sides with olive oil, salt, pepper, paprika, and thyme. Let rest at room temperature.
- Prepare Green Beans:
- Toss green beans with olive oil, salt, and pepper. Spread evenly on one side of the prepared sheet pan.
- Arrange Pan:
- Mound mashed potatoes on the other side of the pan, forming 4 separate piles.
- Add Steaks:
- Lay steaks in the remaining space on the pan.
- Roast:
- Roast for 12–15 minutes, flipping steaks halfway through, until desired doneness (130°F/54°C for medium-rare).
- Broil (optional):
- If needed, broil for 2 minutes to brown the steaks.
- Finish:
- Remove from oven. Let steaks rest for 5 minutes. Sprinkle with parsley before serving.
Pin This sheet pan steak dinner has become a staple at our Sunday gatherings as it brings everyone together without fuss, letting us focus on making memories.
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Required Tools
Large sheet pan, saucepan, potato masher, knife and cutting board, tongs.
Allergen Information
Contains dairy (butter, cream). For dairy-free, substitute with plant-based butter and milk alternatives. Always check labels for hidden allergens.
Nutritional Information
Calories: 560, Total Fat: 28 g, Carbohydrates: 36 g, Protein: 39 g (per serving).
Pin 
Serve fresh from the oven for maximum flavor. Leftovers reheat beautifully the next day.
Recipe Q&A
- → What cut of steak is best for this dish?
Boneless sirloin steaks work well, offering tenderness and flavor when roasted alongside the other elements.
- → Can I substitute green beans with other vegetables?
Yes, asparagus or broccoli make excellent alternatives and roast nicely on the sheet pan.
- → How do I achieve medium-rare steak doneness?
Roast steaks at 425°F for 12–15 minutes, flipping halfway, aiming for an internal temperature of 130°F (54°C).
- → Is it possible to make this dish dairy-free?
Use plant-based butter and milk alternatives to replace the butter and cream in the mashed potatoes.
- → What is the best way to mash the potatoes for creaminess?
Boil peeled Yukon gold potatoes with garlic until tender, then mash with butter, cream, salt, and pepper until smooth.
- → Can I prepare this meal ahead of time?
Potatoes can be boiled and mashed in advance. For best results, assemble and roast the sheet pan meal just before serving.
