Chicken Florentine Salad with Orzo Pasta

Salad:

• 2 cups orzo pasta

• 2 (10 ounce) packages baby spinach

• 3 cups chopped grilled chicken

• 2 roma tomatoes, diced

• ½ cup pine nuts

• ¼ cup chopped sun-dried tomatoes

• 2 tablespoons capers, or to taste (Optional)

Dressing:

• 1 cup balsamic vinegar

• ⅓ cup olive oil

• ¼ cup white sugar

• 2 tablespoons dried parsley

• 2 teaspoons dried basil

• 2 cloves garlic, pressed

• 1 teaspoon dried oregano

• 1 teaspoon salt

• freshly ground black pepper to taste

• ¼ cup freshly grated Parmesan cheese, or to taste