Cream of Broccoli Soup with Parsley and Dill

Ingredients

• 2 tablespoons olive oil
• 1 large onion, cut into small dice
• 2 medium carrots, cut into small dice
• 2 medium celery stalks, but into small dice
• 8 cups broccoli florets
• 1 quart chicken broth
• 1/4 cup packed parsley leaves
• 2 tablespoons packed dill leaves
• 2 tablespoons butter
• 3 tablespoons flour
• 1 can (12 ounces) evaporated milk
• 1/4 cup Parmesan cheese
• Salt and ground black pepper
• 1 tablespoon lemon juice