* Cutting corn off the cob can be a mess-making process, at least in my experience, with corn kernels scattered across the kitchen counter and spilling onto the floor. The method I’ve found that works the best to help contain the mess is as follows: Set the shucked ear of corn vertically on its wider end in a shallow bowl, and carefully run a thin, sharp knife down one length of the corn, narrow tip to wide base. (The bowl should capture most of the corn kernel fallout.) Continue in this way, slicing vertically around the cob until all the kernels are removed.
And if you don’t have access to fresh corn on the cob, or you’re just not feeling up to peeling husks and cutting kernels off multiple ears of corn, feel free to use frozen corn, thawed and drained. (A 1-lb. package of frozen corn contains about 3 cups of corn, just enough for this dish.) You can even use corn that’s already been cooked (if you have leftover grilled corn, even better—it adds a smoky flavor that complements the other ingredients quite well); just add it in with the tomatoes to heat it through.
** You can substitute a 14.5-ounce can of diced tomatoes for fresh tomatoes. Just drain any excess juices before adding them to the pan. And if you go this route, it’s worth seeking out fire-roasted diced tomatoes for that smoky flavor element, which plays nicely off the sweet corn and red bell pepper.