This is sandwich i have never tried before.  It is Grilled Polish Kielbasa Sandwich.  It has beer mustard with grilled onion, tomato, pickles and the bread is a Cuban baguette.  I do not know what kind of sausage it would be and what the texture and taste would be.  It was a bit salty but probably is normal because sausage is naturally salty.  It was filling but it was not a Polish sandwich I would want to eat again.  It was not really special and is like a ordinary burger I would eat just to get full.