GRILLED STEAK SALAD WITH TOMATO VINAIGRETTE

Grilled Steak Salad with Tomato Vinaigrette image

Provided by Bon Appétit Test Kitchen

Yield Makes 4 to 6 Servings

Number Of Ingredients 11

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1 pound hanger, skirt, or flank steak
1 teaspoon kosher salt plus more
Freshly ground black pepper
1 medium tomato (about 6 ounces), halved
1 tablespoon minced shallot
1 tablespoon red wine vinegar
1/4 cup plus 5 teaspoons olive oil, divided
4 spring onions or 6 scallions, bulbs halved, dark-green parts discarded
5 1/2-inch-thick slices ciabatta
8 cups mixed summer lettuces (such as mizuna, baby mustard greens, and tatsoi)
3/4 cup fresh basil leaves, torn into 1/2-inch-strips

Steps:

Season steak with 1 teaspoon salt and pepper; set aside. Grate cut sides of tomato on coarse holes of a box grater into a medium bowl down to the skin; discard skin. Add shallot and vinegar; whisk in 1/4 cup oil. Season to taste with salt and pepper. Set aside. DO AHEAD: Tomato vinaigrette can be made 1 day ahead.
Build a medium-hot fire in a charcoal grill, or heat a gas grill to high. Toss spring onions in a medium bowl with 1 teaspoon oil and season with salt and pepper. Grill onions until just tender, 2-3 minutes per side. Transfer to a cutting board and cut into 2" pieces.
Grill steak until seared and cooked to desired doneness, 3-5 minutes per side for medium-rare, depending on steak's thickness. Transfer to a cutting board. Let rest, about 10 minutes.
Meanwhile, make croutons: Brush both sides of bread slices with remaining 4 teaspoons oil and season with salt and pepper. Grill bread until dark golden brown and nicely charred in spots, about 2 minutes per side. Set toast aside until cool enough to handle, then break toast into roughly 1" pieces.
Thinly slice steak against the grain. Toss lettuces, basil, spring onions, croutons, and some of the vinaigrette in a large bowl. Season to taste with salt and pepper. Add steak and toss gently to coat. Serve with remaining vinaigrette alongside.