I think you just captured a fairly common truth about toddlers. Princess's lunch plates looked like that almost every time I gave her a sandwich. Now we just give her rolled up deli meat and cheese with some whole grain crackers so the bread doesn't go to waste.
They learn about it in the Toddler Manual. :)
Now that's a familiar sight at our home! Except there is quite often peanut butter smeared all over the plate and table. Something about PB just screams to him "Lick me off the bread!"
Ah, I see our kids were good friends in the PME and conspired to drive us mad with leaving sandwich remnants, uneaten, just staring at us and mocking us! When will the madness stop!Sigh, you so just flew over to my place and took that picture, didn't you?
At least your toddler left it where you could see it. I've found parts of petrified sandwiches behind the couch and I don't even have a toddler. ;~)Thanks for finding time to come visit my blog!