In a medium sized salad bowl, place the Mache lettuce. If the beets are cold heat in a small frying pan (include the oil from the beets). Mix together the chopped walnuts, blue cheese and beets. Add pepper if desired and serve.
Nutritional information per serving: 210 calories, 16 g fat, 4 g saturated fat, 10 mg cholesterol, 310 mg sodium, 12 g carbohydrates, 3 g fiber, 8 g protein.