Sausage baps need a salad-y component

[cocacolared]

So I've been having sausage baps recently and I feel they need some sort of salad component. But I cant figure out what. Mixed leaves doesn't seem to work, nor would a coleslaw.

Current components:
Heck chicken sausages, buttered flour bap, chilli jam, mayo, pickled gherkins on the side.

Are they the plain chicken sausages, or the Italia ones?

I love salad but it definitely doesn't go with sausage. A sausage bap needs, if anything, an egg and condiment component, but certainly not salad.

The only leaf that can hold its own with a sausage is rocket. Although I think the only vegetable that is suitable for a sausage sandwich is a lightly fried onion. Nothing is going to make it sausage sandwich healthy, adding leaves is just a waste of a good bit of salad

Make a type of salsa with tomatoes, peppers, onions, chilli, something fruity (mango or pineapple)

Did you mean jerk chicken? If so, what about a mango slaw? Yum!
I just looked up Heck Chicken Sausages and realize you didn't mean jerk chicken.
I'd still try mango slaw.

Pan fried onions and mushrooms?