Lentil & Mushroom Bolognese - A better choice!

Ingredients

• 1 brown onion, peeled and finely chopped
• 1 carrot, peeled and finely chopped
• 1 celery stick, finely chopped
• 2 garlic cloves, minced
• 2 ½ tbsp olive oil
• 2 fresh bay leaves
• 4 large field mushrooms, finely chopped
• 1 cup French green lentils
• 410g can diced tomatoes
• 1 ½ cups vegetable stock
• 400g passata
• Dried pasta of your choice
• Parmesan, finely grated, to serve
• Fresh parsley leaves, chopped, to serve