Hanger Steak with Charmoula

Name: Hanger Steak with Charmoula
Ingredients: 2 cups shelled fresh or frozen cranberry beans (12 ounces); 4 thyme sprigs; 3 garlic cloves, smashed; Salt and freshly ground black pepper; 1 packed cup flat-leaf parsley leaves; 1/2 packed cup cilantro leaves; 2 tablespoons fresh lemon juice; 3/4 cup extra-virgin olive oil, plus more for brushing; 1/2 teaspoon ground coriander; 1/2 teaspoon ground cumin; 1 pound oyster mushrooms, thickly sliced; 1 cup beef broth; 2 pounds trimmed hanger steak; 2 Italian frying peppers, thickly sliced