That sounds like a good combination, reminds me of when I worked in a restaurant in California and someone asked me to throw cheddar cheese on top of their apple pie. I thought it sounded repulsive but they said it's a big midwest thing. Years later, now I think it sounds do-able.
A fig and goat cheese sandwich could be really good as well if you're trying to stay with the theme of cleaner, lighter summertime options. Maybe throw prosciutto in there if you eat meat? On nice fluffy, flaky bread I can see that working well.