Chapati sausage roll

I can't believe I haven't thought of this before!  I'm sure you have... but translate hotdog into something a bit lighter and homemade (but also quick).  3 ish portions...

2 onions
1 tbsp olive oil
6 sausages
1 tin of tomatoes
American mustard
Pea shoots - or shredded lettuce etc
4(ish) chapatis

1.  Fry sausages in olive oil, add sliced onion.
2.  Soften onions and cook sausages a bit, then add tin of chopped tomatoes and half a tin of water.
3.  Simmer until onions are soft, sausages are cooked through.
4.  Microwave chipatis for 45 seconds (ish)
5.  Well - obviously - put chapati on plate, put sausage and good spoonful of onion and tomato mixture on top, season, add mustard and green stuff.  Roll up.
6. Scoff