I ended up eating a banana and a P3 I picked up from the drug store. Lunch will also be light - two chocolate rice cakes, natural peanut butter, and some dried fruit.
Power is still out, so it looks like most of my fridge will have to be discarded, but supposedly the freezer is still okay, assuming the power isn't off for a full 24 hours. I have my doubts about my kids ice cream sandwiches, though.