Preheat your broiler to high. Place the corn on a baking sheet and roast under the broiler, turning every couple of minutes, until all sides are browned and even a little charred, about 6 to 8 minutes. Let the corn cool and then hold it by one end and slice down the cob with a knife to separate the kernels from the cob.
Place the corn, tomatoes, parsley, and hearts of palm in a large bowl. Drizzle with some olive oil and season with salt and pepper and toss together. Scoop the salad into the radicchio cups and serve with lime wedges
Recipe courtesy of Ingrid Hoffmann