Grilled Chicken Caesar Salad

INGREDIENTS

• 4 romaine lettuce hearts, halved lengthwise
• 3/4 cup freshly grated parmesan cheese, plus more for garnish
• 2 to 4 anchovy fillets, chopped
• 3 cloves garlic
• Kosher salt and freshly ground pepper
• 1 pound skin-on, boneless chicken breasts
• 1/2 cup extra-virgin olive oil, plus more for brushing
• 4 (1/2-inch-thick) slices focaccia or whole-wheat Italian bread
• Juice of 1 lemon