Mix together in a mixing bowl, the lemon juice, olive oil, tamari and mustard. Add the beans, artichokes, basil, scallions, capers and black pepper. Mix well. Add more lemon juice, if needed. Serve on a bed of radicchio and arugula leaves.
If radicchio and arugula are not available, substitute any leaf lettuce or even baby salad greens.
Per serving - 223 calories, 5 g fat (19% calories from fat), 10 g protein, 35 g carbohydrate, 13 g fiber, 0 mg cholesterol, 428 mg sodium