The students are here! Thanks for the advice everyone. Our student is mostly vegetarian, we have fresh fruit on hand that she likes so that is good. For the first evening I made rice krispy treats for a snack, she had never that before and liked it. So far, so good.
Additional info: I made Pillsbury cinnamon rolls with cream cheese icing for breakfast, she had never had a cinnamon roll before, and she liked it. We went out for terrific french fries at Five Guys Burgers and Fries tonight, she liked them - with vinegar (my DH eats them that way too.) Then we went and got frozen yogurt - another first for her. I think she is having a good time so far, and she is not going to go hungry!
One more addition: I was worried about what kind of tea to get - I didn't need to. When I asked student about what kind of tea she would prefer, she told me she doesn't like tea! That was a surprise!