Hearty Tortellini Pasta E Fagioli

Ingredients

• 1 tablespoon olive oil
• 1 small carrot, chopped (optional)
• 2 small celery stalks, chopped (optional)
• 1/2 small onion, chopped (optional)
• kosher salt and freshly ground black pepper
• 2 cups tomato basil or marinara sauce
• 4 cups vegetable or chicken broth
• 1 (14.5-ounce) can of cannellini beans
• 1 pound any ham tortellini, such as pancetta or prosciutto, preferably mini-sized
• grated parmesan to garnish
• thinly sliced prosciutto to garnish (optional)