I have offered to do a surprise picnic for a friend and her boyfriend. Essentially, I will make the basket ingredients and hide them in a location that they will show up to later and then feast.

So the obvious question - what should I make! No source of heat, so that's a factor. Also, he is not keen on onions and she is not big on peppers or mushrooms (no I don't know how they survive!) What would you make for a romantic picnic outside?