Steak-Spinach Salad With Sour-Cream Potatoes

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  • Level: Easy
  • Total: 1 hr 20 min
  • Cook: 1 hr 20 min
  • Yield: 4 servings
  • Nutrition Info
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Ingredients

2 medium russet potatoes

3 tablespoons olive oil, plus more for brushing

1/2 cup sour cream

2 tablespoons buttermilk

1/4 cup chopped fresh chives

Juice of 1/2 lemon

Kosher salt and freshly ground pepper

1 3/4-pound boneless sirloin steak

1 large red onion, sliced into thick rings

6 ounces baby spinach or chopped regular spinach

2 to 3 tablespoons steak sauce

Directions

  1. Preheat the oven to 400 degrees F. Pierce the potatoes with a fork and brush with olive oil. Bake directly on the oven rack until tender, about 1 hour. Cool slightly, then cut into chunks. Mix the sour cream, buttermilk, chives and lemon juice in a large bowl and season with salt and pepper. Stir in the potatoes.
  2. Meanwhile, preheat a grill to high. Brush the steak and onion rings with olive oil and season with salt and pepper. Grill the steak until marked on the bottom, about 7 minutes, then turn and cook 4 to 5 more minutes for medium-rare. Grill the onion rings until charred, about 2 minutes per side. Transfer the steak and onion rings to a cutting board and let rest 5 minutes.
  3. Roughly chop the onion rings and toss with the spinach, steak sauce, 3 tablespoons olive oil, and salt and pepper to taste in a bowl. Thinly slice the steak. Divide the salad among plates, top with the steak and serve with the potatoes.