Save 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 prepared this sheet pan steak and garlic mash for a cozy family dinner& everyone loved that it felt fancy yet simple. This recipe turned into a regular Sunday night tradition because it brings everyone to the table fast and happy.
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), 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
Instructions
- Prepare Oven & Pan:
- 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.
- Prepare Steaks:
- While potatoes cook, pat steaks dry. Rub both sides with olive oil, salt, pepper, paprika, and thyme. Let rest at room temperature.
- Prep Vegetables:
- 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).
- Optional Broil:
- If needed, broil for 2 minutes to brown the steaks.
- Rest & Garnish:
- Remove from oven. Let steaks rest for 5 minutes. Sprinkle with parsley before serving.
Save One chilly evening, my kids helped pile up the mash and snuck extra parsley as a garnish. Their giggles and excitement made sheet pan steak night even more special.
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 Protein: 39 g Carbohydrates: 36 g Total Fat: 28 g
Save This sheet pan meal delivers maximum comfort with effortless cleanup. For best flavor, don&t skip a sprinkle of fresh parsley before serving.
Recipe FAQ
- → How do I ensure the steak is cooked to medium-rare?
Roast the steak for 12–15 minutes at 425°F, flipping halfway through. Aim for an internal temperature of 130°F (54°C) and let it rest before serving.
- → Can I substitute the green beans with other vegetables?
Yes, asparagus or broccoli work well and can be roasted alongside the other ingredients on the sheet pan.
- → What can I use instead of heavy cream for the mashed potatoes?
Milk or a dairy-free alternative like almond or oat milk can be used for a lighter or dairy-free option.
- → How do I make the mashed potatoes creamy and smooth?
Boil potatoes until fork-tender, then mash with butter, cream, salt, and pepper until smooth and creamy.
- → Is it necessary to rest the steak after cooking?
Yes, resting the steak for about 5 minutes helps redistribute the juices, ensuring a tender and flavorful result.