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Cowboy Butter Steak

Seared sirloin gets a spoonful of garlicky mustard and chili butter, with roasted potatoes and a lemony salad alongside. The potatoes roast while you cook the steak.

Total
45 min
15 prep · 30 cook
Serves
4
Scale it below
Calories
649
kcal per serving
Protein
38g
per serving
Sliced steak with herb butter, roasted potatoes, arugula, and cherry tomatoes on a plate. 45 min

Ingredients

13 ingredients
4 servings

Contains dairy. Always check labels.

Nutrition per serving

Estimated

649 kcal

Protein
38 g
Carbs
38 g
Fat
39 g
Fiber
5 g
By EatpaceHow we write and check our recipes

Method

7 steps Oven 425°F 15 min prep · 30 min cook

Prep

  1. Step 1. Heat the oven to 425°F (220°C). Toss Potato with half the Olive Oil and some of the Salt on a sheet pan. Spread in one layer and roast until browned and tender, about 25 minutes, turning halfway.

  2. Step 2. Meanwhile, mix Butter, Garlic, Fresh Parsley, Dijon Mustard, Red Pepper Flakes, and a squeeze of juice from half the Lemon in a small bowl.

  3. Step 3. Season Beef Sirloin on both sides with the rest of the Salt and the Black Pepper.

Cook

  1. Step 4. Heat the rest of the Olive Oil in a large skillet over medium-high heat. Sear the steaks until browned and an instant-read thermometer reaches your preferred doneness, about 4 minutes per side for medium-rare.

Finish & serve

  1. Step 5. Transfer the steaks to a cutting board and rest for 5 minutes so the juices settle.

  2. Step 6. Meanwhile, toss Arugula and Cherry Tomatoes with juice from the rest of the Lemon.

  3. Step 7. Slice the steaks against the grain and fan them onto plates. Spoon the cowboy butter over the warm steak and serve with the potatoes and salad.

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Tips

Good to know

For medium-rare steak, remove it from the skillet at about 130°F; its temperature will rise as it rests.

Swap it

Use baby spinach in place of arugula for a milder salad.

In Eatpace

Plan it, and the grocery list follows.

Add this dinner to the plan or to Up next, and 10 of its 13 ingredients join one grocery list with your other dinners, the same ingredients added up and sorted by aisle.

Plan this dinner Free on iPhone
This plan 3 dinners to go
  1. TONIGHT Shredded Hoisin Chicken Wraps 35 min
  2. TOMORROW Romesco Tofu and Broccolini 45 min
  3. DINNER 3 Slow Cooker Red Lentil Curry 282 min
Grocery listWhat this dinner adds 10 items
Produce
  • Arugula3½ oz
  • Cherry Tomatoes7 oz
  • Fresh Parsley½ oz
  • Garlic2 cloves
  • Lemon1
  • Potato1¾ lb
Meat & fish
  • Beef Sirloin1½ lb
Dairy & eggs
  • Butter2¾ tbsp
Cans & jars
  • Dijon Mustard1 tbsp
Spices
  • Red Pepper Flakes¼ tsp

Olive oil, black pepper and salt count as in stock. Amounts follow your servings.

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