Yup start every meal with a salad! That's a tasty way to prepare your stomach, and give it something healthy to fill part of it with.
I ate out for lunch yesterday and began with a lovely salad. I then had salmon with broccoli and only ate half of that, so I took the other half home. So the salad helped me to be comfortably full, and meant I had a delicious snack for later.
I try to have a salad before lunch and dinner. Especially with salad-in-a-bag, it is incredibly easy to do.