Components of this salad can be prepared one day ahead, then tossed together at the last minute. Offer white wine spritzers and iced tea with lunch. Colorful ornamental kale can be found at some supermarkets and specialty foods stores.
02Cook beans in large pot of boiling salted water until crisp-tender, about 5 minutes. Drain. Refresh with cold water. Drain well. (Can be prepared 1 day ahead. Cover chicken and beans separately and refrigerate.)
03Combine mustard and vinegar in medium bowl. Gradually whisk in oil. Add shallots and 2 tablespoons thyme. (Can be prepared 1 day ahead. Store dressing at room temperature.)
04Add beans, dressing and walnuts to chicken and toss to coat. Season with salt and pepper. Line platter with kale. Top with salad. Sprinkle with cheese and additional thyme and serve.