Meals that are properly sized will help. As an example, on Saturday morning my wife and I walk over to a neighborhood restaurant and have a sizeable omelet w/ home fries. Because of the volume of food that we consume, it's not uncommon for us to not eat for up to 5 hours. Eating before that would not be comfortable nor constructive. Ideally, we should eat less ... but there are physical, psychological, and emotional benefits to really being satisfied by a meal once in awhile.
What you'll really want to do to move toward your goal of putting on some quality
lean mass is to regulate the flow of nutrition that you offer your body.
- Make improved meal choices
- Deliberately select your meal components
- Intentionally and intelligently control the volume and balance of food that your digestive system sees
While this may seem like a pain in the rear, it's really more a matter of doing some learning about nutrition and the way that your body uses it. Once you learn some facts, then apply them to your pattern of eating, it'll become second nature to you and won't require the same level of planning (that it will initially).
Workout regularity and structure is another point that you'll need to address, of course.