I ate big once a week last summer, here's a sample of what I ate in an afternoon:
a box of krusty's pancakes
a box of strawberry bagel shoppes
a large freschetta pizza
half a roll of baked pillsbury chocolate chip cookies
2 pints of ben and jerry's
about a 1/3 of an oreo cake
one night at 2 in the morning I ate 24 eggs, 8 in an omelette, 8 scrambled and 8 fried.
It's easier to eat a lot if you mix it up.