We have long had the cultural notion of "heavy meals." These tend to be "rich" or, in other words, laden with protein and fats. As we know, this would stimulate production of cholecystokinin which in turn inhibits gastric emptying to allow you to absorb these nutrient dense meals! Evolutionarily speaking, it makes no sense whatsoever to go to all of the trouble of tracking prey and eating it if you cannot absorb the meal!
CCK is also an appetite suppressant, since it makes little sense for you to gorge yourself if you have not yet digested your previous meal!
In contrast, there is a panoply of magazines exhorting the benefits of "eating light", which generally translates into shifting the meal makeup from proteins and fats to more vegetables and other indigestible carbohydrates like fiber. It turns out that carbohydrates are not particularly good at eliciting a cholecystokinin response, which means that gastric emptying is quite rapid after a carb heavy meal, making these meals the darlings of the "light" crowd. This also goes a long way towards explaining the cliche about Chinese food.
I expect that you can definitely eat enough food in one meal, but stick to nutrient dense foods ... proteins and fats ... your cholecystokinin and gastric emptying rates will thank you.