"il y a du saucisson" means "there is saucisson", "comme" means "as", "like".

"Saucisson" or more precisely "saucisson sec" is a dry cured sausage, thinner than salami.

Saucisson.

saucisson sec or saucisse

(it depends on what kind of sausage you are talking about)

Saucisson sec is dried sausage ready to eat, i.e, it has been preserved by drying,sometimes by smoking and usually contains potassium nitrate.

saucisse is usually fresh sausage that requires cooking.

'une saucisse'

and/or saucisson sec