Peel and deseed (optional, and depends on the variety of cucumber) and dice or slice the cucumber. Core and chop the apple into chunks or slices. Do the same with the bell pepper. Make sure the vegetables are cut into more or less the same size. Put everything together into a salad bowl.
Put together all the ingredients for the dressing into a small jar and mix well. Pour over the salad and toss lightly. Sprinkle the sesame seeds evenly over the top.
Serve immediately.
Notes
This recipe should serve 2 to 4 people as a side dish.