La Scala–Style Chopped Salad

Name: La Scala–Style Chopped Salad
Cuisine: European, Italian, Mediterranean
Ingredients: ⅓ cup grated Parmesan cheese; ¼ cup red wine vinegar; 1 teaspoon Dijon mustard; 1 garlic clove , minced; 1 teaspoon table salt; ½ teaspoon pepper; ¼ cup extra-virgin olive oil; 1 (15-ounce) can chickpeas , rinsed; 12 ounces romaine lettuce hearts , cut into ½-inch pieces (4 cups); 6 ounces iceberg lettuce , cut into ½-inch pieces (2 cups); 4 ounces salami , cut into matchsticks; 4 ounces whole-milk block mozzarella cheese , shredded (1 cup)