| Prep time: 10min |
Cooking time: 40min |
| Serving 4 | Regular |




Heat oil in a large, heavy-based pan over medium heat. Add leek and cook for 3 - 4 minutes until soft, stirring regulary. Add pancetta, carrot and celery and cook for 3 - 4 minutes until lightly golden, stirring regularly.
Leek, chopped
Olive oil
Pancetta (or bacon), chopped
Carrot, finely chopped
Celery sticks, finely chopped


Add lentils, passata and stock. Bring to the boil, then reduce heat and simmer uncovered for 25 - 30 minutes or until the sauce is reduced and thickened. Season well with salt and pepper.
Can lentils, rinsed and drained
Passata
Chicken stock
Salt and pepper
Meanwhile, cook spaghetti in a large saucepan of boiling water for 8 - 12 minutes until al dente. Drain and return to saucepan. Stir warm sauce into the pasta. Place pasta and sauce mixture into a serving dish and scatter with parmesan shavings.
Spaghetti
Parmesan cheese shavings