Keep it light and simple. You can always look at some of the protein shakes. Some of them are more or less meal replacements, though they might have to many calories. Maybe a handful of nuts and some yogurt? Salad made with baby spinach instead of lettuce (lettuce doesn't do a whole lot for you).

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"BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Will he offer me his mouth? BOY: Yes. GIRL: Will he offer me his teeth? BOY: Yes. GIRL: Will he offer me his jaws? BOY: Yes. GIRL: Will he offer me his hunger? BOY: Yes. GIRL: Again, will he offer me his hunger? BOY: Yes! GIRL: Yes. BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Yes. BOY: I bet you say that to all the boys!" -Meatloaf