That's because it's not Inglis, but Lallans, one of the Scots languages!
Neeps is turnips, aka rutabaga in various parts of the world, swede in England.. The orange ones, not the smaller, white ones.
The word is chappit, which means mashed in this context, one can also chappit on a door... ie knock. Bashed is mashed, too.
Totties is the weegie way of saying tatties, ie potatoes.
Battered sausage is standard chip shop fare. Blech!