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 created this recipe when I wanted a satisfying steak dinner but didn’t want to juggle multiple pots and pans. Sheet pan meals have become my go-to for weeknights because they make serving up a special dinner so simple.
Ingredients
- Boneless sirloin steaks: 4 (6 oz / 170 g) pieces
- Olive oil: 2 tbsp for steaks, 1 tbsp for vegetables
- Kosher salt: 1 tsp for steaks, 1 tsp for potatoes, 1/2 tsp for green beans
- Freshly ground black pepper: 1/2 tsp for steaks, 1/2 tsp for potatoes, 1/4 tsp for green beans
- Smoked paprika: 1 tsp
- Dried thyme: 1 tsp
- Yukon gold potatoes: 2 lbs (900 g), peeled and cubed
- Garlic: 4 cloves, peeled
- Heavy cream (or milk): 1/4 cup (60 ml)
- Unsalted butter: 2 tbsp
- Green beans: 1 lb (450 g), trimmed
- Chopped fresh parsley (optional): 2 tbsp
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.
- Prepare Steaks:
- While potatoes cook pat steaks dry. Rub both sides with olive oil, salt, pepper, paprika and thyme. Let rest at room temperature.
- Season Green Beans:
- Toss green beans with olive oil, salt and pepper. Spread evenly on one side of the prepared sheet pan.
- Arrange on Sheet Pan:
- Mound mashed potatoes on the other side of the pan forming 4 separate piles.
- Add Steaks:
- Lay steaks in 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.
- Rest & Garnish:
- Remove from oven. Let steaks rest for 5 minutes. Sprinkle with parsley before serving.
Pin Sheet pan dinners like this one have brought my family together on busy nights. Seeing everyone dig in and enjoy a steakhouse-quality meal without the fuss is always a treat.
Required Tools
Large sheet pan, saucepan, potato masher, knife and cutting board, tongs
Allergen Information
Contains dairy (butter, cream). For dairy-free you can substitute plant-based butter and milk alternatives. Always check labels for hidden allergens.
Nutritional Information
Per serving: 560 calories, 28 g total fat, 36 g carbohydrates, 39 g protein
Pin This sheet pan steak dinner makes any busy night feel special. Enjoy easy prep and delicious comfort, all in one pan!
Recipe FAQ
- → What cut of steak works best for this meal?
Boneless sirloin steaks offer a good balance of tenderness and flavor, cooking evenly on the sheet pan.
- → How can I tell when the steak is perfectly cooked?
Cooking to medium-rare is achieved at an internal temperature of 130°F (54°C). Use a meat thermometer for accuracy.
- → Can I substitute the green beans with other vegetables?
Yes, asparagus or broccoli work well as alternatives, offering similar roasting times and flavors.
- → Is it possible to make the mashed potatoes dairy-free?
Replace butter and cream with plant-based alternatives like vegan butter and non-dairy milk to maintain creaminess.
- → What is the best way to keep the steak juicy when roasting?
Pat steaks dry, season well, and allow them to rest after roasting to retain juices and enhance tenderness.