Ashley Christensen is reknowned for her simple, excellent salads. Here she tops heirloom tomatoes with shavings of Italian Piave, a nutty-sweet aged cow's milk cheese. Terrific Green Salads
On a platter, season the tomatoes with salt and pepper. Drizzle with 1/4 cup of the oil; toss. Let stand for 10 minutes.
Meanwhile, in a large bowl, combine the remaining 1/4 cup of oil and the lemon juice. Add the escarole, season with salt and pepper and toss. Mound the escarole on a platter and top with the tomatoes and any accumulated juices. Scatter the cheese shavings on top and serve.