Quick, yummy, vegetarian dish?

Tomorrow at school we're having 'turkey corn nibblets.' EWWW. I wanna have a dish for lunch that I made either tonight of early tomorrow morning. It has to be quick with not a lot of fancy ingredients [I'm going to publix in a sec], I would like it to be Mexican or spanish since I has a packet of instant Mexican rice that has been here a while, and is OK cool. Thank you and I really hope it's not too much to ask for!