I found this on one of those little grocery store recipe cards. I love the combination of rhubarb and strawberries anyway so this is a fun way to serve that as a crisp. The card shows how to make this on the "grill" which is basically putting the dish on the cool side of a grill and cooking covered for 25 minutes. That means if you don't want to turn on an oven you can still make this dish. The other option would be your oven and you would bake uncovered for 20-25 minutes. Either way it is great and even more wonderful with a scoop of vanilla ice cream.