I really wanted to serve one of the dishes in some type of 'box'. A salad seemed like a good choice as it can be prepared in advance and no cooking is required. This salad was very simple and our guests seemed to enjoy it.
My quantities are not great for this, so I will just tell you what I included and you can include as little or as much of each as you like.
Beef cooked to medium and thinly sliced
Mixed greens (I used the 'Asian Salad Greens' mix you can buy in packets from the supermarket)
(If I had remembered, I would also have included toasted almonds)
Combine beef, greens, tomatoes, cucumber and spring onions in a bowl. To make the dressing, mix fairly equal parts of soy sauce and lime juice, add a splash of fish sauce and a teaspoon or two of sugar. Combine well. Dress the salad just before serving.