Step 1Bring a pot of salted water to a boil, then add the fava beans and cook 30 seconds to 1 minute. Drain and rinse under cold running water. Break the outer skin of the bean and squeeze the bean out of its skin.
Step 2In a small bowl, toss the beans with the cubes of pecorino Romano. Stir in 3 tablespoons olive oil, lemon juice, chopped parsley, salt and cracked black pepper (about 4 grinds). Set aside and allow the beans to marinate while you grill the romaine.
Step 3In a cup or small bowl, combine the remaining 1 1/2 tablespoons olive oil and the minced garlic. Brush the quartered romaine with the garlic olive oil and place on an oiled grill over medium-high heat until the lettuce is lightly charred on all sides but still crisp in the center, about 4 to 5 minutes.
Step 4Place a grilled romaine quarter on each of four serving plates. Spoon an equal amount of the fava bean and pecorino mixture over the top of each and season with a few more grinds of black pepper.