Wow, great suggestions. Thank you, both of you! If anyone else has more, keep 'em coming!
I love that rice & bean burrito idea, especially the lemon/lime/cilantro seasoning twist on things. I'm guessing a little salsa would be ok, too, since that's usually pretty low-calorie.
The low-fat cottage cheese suggestion is also intriguing. Sounds like a good excuse to mix in some pineapple as well.