Dijon Herb Butter Sirloin with Roasted Yukon Gold Potatoes and Garlicky Green Beans

This Dijon herb butter sirloin is a simple steak dinner with just enough flourish to feel special. The steak is seared first for color, then finished in the oven alongside golden roasted potatoes.

A quick butter made with Dijon mustard and parsley melts over the sliced steak, while green beans cooked with garlic round out the plate with a crisp, savory bite.

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Ingredients

12 ounce Sirloin SteakView ingredient guideLike ingredientDislike ingredient

12 ounce Yukon Gold PotatoesView ingredient guideLike ingredientDislike ingredient

2 clove GarlicView ingredient guideLike ingredientDislike ingredient

0.25 ounce ParsleyView ingredient guideLike ingredientDislike ingredient

6 ounce Green BeansView ingredient guideLike ingredientDislike ingredient

1 teaspoon Dijon MustardView ingredient guideLike ingredientDislike ingredient

1 tablespoon Vegetable OilView ingredient guideLike ingredientDislike ingredient

1 tablespoon ButterView ingredient guideLike ingredientDislike ingredient

Salt, to tasteView ingredient guideLike ingredientDislike ingredient

Pepper, to tasteView ingredient guideLike ingredientDislike ingredient

Instructions

1. Preheat the oven to 425°F. Wash and dry the produce. Set the steak and 1 tablespoon butter out at room temperature while you prep.
2. Peel the potatoes and cut them into 1/2-inch cubes. Thinly slice the garlic. Finely chop the parsley.
3. Place the potatoes on a baking sheet. Toss with a drizzle of oil, salt and pepper, then spread into an even layer. Roast until browned and tender, 20 to 25 minutes total; the steak will be added to the same sheet before the potatoes are done.
4. Heat a drizzle of oil in a large pan over medium-high heat. Pat the steak dry with a paper towel. Sear until browned on the outside, 2 to 3 minutes per side.
5. Transfer the seared steak to the baking sheet with the potatoes. Roast until cooked to your desired doneness, 5 to 7 minutes. Remove the steak from the sheet and let it rest for 5 minutes.
6. While the steak rests, heat another drizzle of oil in the same pan over medium heat. Add the green beans and cook, tossing, until tender but still slightly crisp, 4 to 5 minutes.
7. Add the sliced garlic to the green beans and cook until fragrant, about 30 seconds. Season with salt and pepper.
8. In a small bowl, stir together the softened butter, Dijon mustard and a pinch of chopped parsley. Season with salt and pepper.
9. Slice the steak against the grain. Top with the Dijon parsley butter. Serve with the roasted potatoes and garlicky green beans, garnishing with any remaining parsley.

Recipe Tips

FAQ

How long does this steak dinner take?

The recipe is designed to come together in about 30 minutes.

What kind of steak is used?

This recipe uses sirloin steak.

What goes into the Dijon herb butter?

The butter is mixed with Dijon mustard, chopped parsley, salt and pepper.

How are the potatoes cooked?

The Yukon Gold potatoes are peeled, cut into 1/2-inch cubes, tossed with oil, salt and pepper and roasted at 425°F until browned and tender.

Does this recipe contain dairy?

Yes. The recipe includes butter, which contains milk.