Cheesy Eggplant-Beef Bolognese Pasta Bake

Ingredients

• 1.1 pounds ground beef
• 1 eggplant (cut into small cubes)
• 1 onion (finely chopped)
• 2 garlic cloves (minced)
• 3 tbsp olive oil
• 1 celery stalk (finely chopped)
• 1 carrot (finely chopped)
• 2 cups puréed tomatoes
• 1 ¾ cups chicken broth
• ½ tsp ground cumin
• ½ tsp ground coriander
• ½ tsp smoked paprika
• salt (to taste)
• black pepper (to taste)
• 9 ounces pasta
• 5 1/2 ounces shredded mozzarella
• 1 mozzarella ball (torn into pieces)
• pine nuts