Huh? You are not very good at debating are you.
Unless by decent you mean McDonalds, which is FAR from decent. They dont have entrees simply because they have no more menu space to fit them on, and well, they suck.
Any DECENT like REALLY decent eatery will have proper sized dishes. You simply need to eat more. I can chow down a entree and a main at anywhere DECENT. But two mains Im not going to do it. Well not going to do it to be able to fit in 2 bits of garlic toast, and 1/2L of cold rock after. Cause you gotta have cold rock.
Its also about the flavour. I never want just one meal, and one flavour for the night, or even lunch. I feel if Im paying good money I want some variety. Its that or a reef and beef or something, which is normally the cost of a mains and entree anyway.