Take all the great, rich flavor of cheesecake, layer it with summer’s best berries, then add a little crunch and a touch of chocolate, and you have what may just be the perfect summer dessert. Best of all, a great big, celebratory serving of this parfait clocks in at less than 400 calories. (This recipe can also be made to serve six instead of four. Just use smaller glasses and divvy the recipe up into six parfaits with less than 250 calories each. We pinky-swear it won’t feel skimpy!) In honor of Old Glory, this version is red, white and blue, but you can certainly toss in other fruit as well. Each fruit layer may be made with a combination of fruits, or you can alternate to create red and blue stripes. The crumb layer may be made several days ahead and stored in a closed container at room temperature; the cheesecake layer may be made a day or two ahead and kept covered in the refrigerator. Wait until just a couple of hours before serving to assemble the parfait, to ensure the crumb