Cut off ends of cucumber; using a vegetable peeler, place about 4 'stripes' from top to bottom of each cucumber. Then slice each cucumber into 1/4 inch slices and then cut each slice in half.
Slice the tomatoes into halves
Slice the red onion into small, bite-size pieces
In a large bowl, add in all ingredients and gently toss together until mixed.
Keep refrigerated in an airtight container for up to two days.
Notes
Nutrition per serving: Calories - 108; Total Fat - 8 grams; Protein - 2 grams; Carbohydrates - 7 grams; Fiber - 2 grams; Sodium - 45 milligrams