I'm having some people over for dinner, and was looking around for ideas for a summer menu. I eventually came by a suggestion that I liked, and ended up with this:
Appetizer: Chilled Avocado Soup Shots
Main: Grilled leg of Lamb  with Savoy Slaw 
For dessert I'm doing home-made ice cream and some kind of warm fruit.
My question is: For the main, we have lamb and slaw. Seems like a good combination. However, I'm looking for something "saucy" to go with them, and because of the flavor profile I'm not sure what will work.
Suggestion 1) Roasted tomato and ancho salsa. There's ancho on the lamb, so this might pair well?
Suggestion 2) Tzatziki - who doesn't like Tzatziki with a barbecue? But I'm afraid it'll clash with the slaw.
Suggestion 3) Some reduction of stock, wine and meet juices as a simple sauce.
I was also thinking about having freshly baked pitas with the main. So, what do you think? Too many things? Would you miss a sauce of some kind with the lamb+slaw combo?