One of the biggest foes in the battle of the bulge is hunger.
You can't be on the defensive. If you wait until you're hungry it's too late.
You must go on the offense. You must eat before you are hungry.
Doing that will allow you to eat less and not be as tempted to overeat because a thing tastes good.
You may need to eat a snack between meals to prevent getting hungry. Doing so would be an offensive move.
Another offensive tactic to keep hunger at bay is to eat protein and fiber at each meal and snack.
It doesn't have to be complicated. Yogurt or milk plus high fiber cereal. Cottage cheese plus an apple. An egg salad or tuna sandwich on whole grain bread and some carrot sticks. A granola bar with protein and fiber added.
See--that's simple, doable...and believe me it works. The protein and fiber take longer to digest. Your stomach doesn't empty so quickly and the blood sugar rise, which affects appetite and hunger, is slower and lower.
Find the lowest calorie high fiber protein combination and see what a difference it makes overall.