3 grilled portobello tarragon parsley Recipes

unsalted butter, softened, chopped tarragon leaves, chopped flat-leaf parsley, salt and freshly ground pepper, portobello mushrooms, stemmed, extra-virgin olive oil, for brushing

white wine vinegar, anchovy, minced , optional, dijon mustard, kosher salt, plus more for seasoning, freshly ground black pepper, extra-virgin olive oil, plus more for brushing, roughly chopped parsley leaves, chopped tarragon leaves, portobello mushrooms, stems removed and discarded, ripe plum tomatoes, halved, head romaine, quartered , root end attached