3 flank steak shallot vinaigrette Recipes

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

shallots, peeled, olive oil, balsamic vinegar, chopped fresh chives, salt and pepper, chopped garlic, butter, cooked polenta, hot, flank steak, springs thyme