This soup is what comes of preserving the late summer ingredients-- corn, tomatoes, peppers. I usually make it in the winter by pulling everything from the freezer and whipping together. If making with fresh ingredients, the bell peppers don't need to be grilled separately and then added to the tomato mixture, but the flavor is better. You can also use canned tomatoes in place of the fresh tomatoes, and frozen corn works well at any point in the year.