One thing almost every client and I discuss is the importance of sitting down to a completely built plate each time they eat. I explain how just the act of seeing a complete meal can have an effect on how satisfying it can be. This piece of advice isn't just from gut instinct (although, when I take my own advice, it works). It stems from research that indicates how both hunger and the feeling of being satisfied are linked to our perceptions of our meals.
Here's the example the study gives: