This is pretty straightforward. You're going to be eating today, I assume, on a plate, so say "plåto" instead.
Maila' fan i plåto. Give me the plate. (Not literally; it's very slang-ish but still correct Chamorro.)
ESPESIÅT ASUT NA PLÅTO
(Blue Plate Special)
(unless you were going to eat off your license plate)