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 made this recipe for a busy weeknight when everyone wanted steak but I needed something simple. The sheet pan method saved tons of time and became an instant family favorite, especially with the creamy garlic mash all cooked together.
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
Instructions
- Prepare Sheet Pan:
- Preheat oven to 425°F (220°C). Line a large sheet pan with parchment paper or foil.
- Cook Potatoes:
- 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.
- Season Steak:
- 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 on Pan:
- Mound mashed potatoes on the other side of the pan, forming 4 separate piles.
- Add Steak:
- 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 if Needed:
- If needed, broil for 2 minutes to brown the steaks.
- Finish and Serve:
- Remove from oven. Let steaks rest for 5 minutes. Sprinkle with parsley before serving.
Save This sheet pan steak and mash became our go-to for family nights, especially since everyone could pick their favorite side and the cleanup was a breeze.
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
Per serving: Calories 560, Total Fat 28 g, Carbohydrates 36 g, Protein 39 g
Save Serve this dish hot, straight from the oven for a cozy and hearty dinner. The sheet pan method keeps everything simple and satisfying.