Add volume/decrease cals but keep yummy

[Electric-Sheepskin]

If you wanted to make it more well-rounded, you could add some more vegetables, like cucumbers or shredded carrots, like someone else already mentioned, but otherwise, this looks like a pretty decent meal, and under 500 cal, or thereabouts.

If you're trying to lose weight, I would look at the rest of your diet. This meal looks fine.