As summer hits its stride, and gloriously fresh produce becomes a luxurious stalwart of everyday noshing, I eat as many tomatoes as I possibly can. But sometimes, it's fun to diversify as well as let tomatoes play a supporting role rather than star. This tart seems to defy gravity and is wonderful warm, at room temp, and even cold. It's the best sort of simple- to make and in flavor- and takes full advantage of and highlights what's in season now!