You can vary the spiciness of this dish by adding more chillies. I served this to visitors and it's now his favourite meal - she says he'd have it for every meal if she'd let him! So, I'm a very happy cooker. ;o) If you cook pasta on a rolling boil it is less likely to stick together - and it doesn't boil over - I don't know why! It just doesn't. My husband likes to pour EVOO and balsamic vinegar over his, but that's him!