Soupy soup soup, - Italian pea and pasta soup

Its just occurred to me that I haven't really posted any food recipes recently, so here's one for an italian style soup I made last night taken from the very good soup book called errr soup.
Sometimes theres nothing nice than an almost broth like mix of peas and pasta this is very easy and quick to boot

2 tablespoons of butter
1/3 cup of roughly chopped panchetta ham or smokey bacon
1 small onion finely chopped
3 1/2 cups of frozen peas
2 stalks of celery finely chopped
a litre of chicken stock
1 teaspoon of tomato paste
2 teaspoons of chopped fresh flat leaf parsley
1/3 cup parma ham
Salt and Pepper to taste
several lasagne sheets either dried or fresh cut into small squares
a small amount of parmasan

In a large saucepan melt the butter, add the onion, celery and panchetta and cook over a medium heat for 5 minutes stirring all the time.
Add the frozen peas a continuing to stir cook for a further 3 minutes
Add the tomato paste, stock and parsley and salt and pepper to taste; if using dried lasagne add now ( oh and taking care as the stock should be quite salty, I didnt add anything to mine) bring to the boil, cover with a lid and reduce to a simmer for 10 to 15 minutes.
If your using fresh lasagne sheets add to the soup in the last three minutes.
To serve place into bowels add the chopped parma ham and top with some grated parmasan