For something more to eat

Here's the thing about sushi.  It never renders you full.  You never get that feeling of maxed-out-ness that accompanies the eating of almost any other meal.  My usual lunch is a sandwich or a burrito.  And if I ate two of either of those things, I would be groaning with discomfort, and would probably be unable to finish the second one.  So you see what I mean.  But I ate a large tray of sushi for lunch today -- silly waste of money, although delicious -- and I am still fighting off the feeling that there should be at least that much more.  I am not full.   I am neither physically full, as to stomach, nor is my sense of hunger assuaged.  I keep looking around, mentally, for something more to eat.