salam alaykoum,
you know sister that rassoul allah told in hadith " nahno kawmon la naakolo hatta najoua wa da akalna la nachbaa" that mean muslim dont eat intil they feel hungry and dont eatintil they fell there stomack is full . in an other hadith rassoul allah told that when we eat it must be 1/3 for what you eat ; 1/3 for what you drink and 1/3 for oxygene.
in the time of Omar IBN ALKHATTAB, he found a man of sahaba he told him what you have bought the man told is one kilo of meat so OMAR TOLD him to dont every time buy what your NAFS want try block the desire.
So okhti try to think that when you eat a lot that there are a lot of people in the world dident found something to eat , so it will help you to stop wasting money time in eating
wassalam alaykoum