What's really amazing is that Omega has slipped significantly over the years, but it's still good for the standard Greek Restaurant breakfast. When I was in grad school in the late 80s, we'd go there for Sunday night dinner because the portions were large enough that many people (not me!) could have a full set of leftovers for the next night.
Their desserts look beautful, but vary. It's been a few years, but I thought their cakes were better than their other sweets.
I'm assuming you went to the one over by Golf Mill. The original is in Ogden in Downers Grove, and there's a smaller one that has struggled across from the west edge of the Yorktown shopping center.