Radish Cucumber Stir-Fry

2 tbls cooking oil
1 large cucumber, peeled, seeded, and thinly sliced
8 radishes, thinly sliced
1 cup chopped arugula (or radish greens!)
1 ½ tsp soy sauce
1 ½ tsp vinegar
1 tsp maple syrup (or sugar)
¼ tsp salt
Pinch of cayenne pepper (or ½ tsp minced hot pepper)

Heat the oil in a skillet over medium heat. Add the cucumbers and radishes and sauté for 4 minutes until tender. Mix together soy sauce, vinegar, maple syrup, salt, and cayenne. Add to skillet along with arugula. Sauté for 2 more minutes. Serve hot. Serves 2-4.