Risotto bolognese

Name: Risotto bolognese
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: European, Italian, Mediterranean
Ingredients: 100 g Parmesan cheese; 200 g beef mince; 2 tbsp olive oil; 1 carrot; 1 celery stalk; 1 shallot; 250 g risotto rice; 650 g water; 1 vegetable stock cube (for 0.5 l); 300 g tomato passata; 1 bay leaf, dried; 1 tsp fine salt; ½ tsp freshly ground black pepper; 15 g butter