Just wanted to pop back in (sorry hadn't had a chance earlier..) and thank everyone for there great help and suggestions! I was very inspired!
I ended up making an Asparagus and potato tart (yummy!), roasted a chicken, a simple salad and grabbed some fresh bread rolls. We also had some cherries and chocolates left over from christmas for desert. Was all very yummy, easy to eat and share. I really should picnic more often, it was so nice and everyone had a great time!

Thanks again