Prep your cucumber. Cut your cucumber in half, then use a spoon to scrape out the seeds. The thickness of your cucumber slices will depend on how much crunch and cucumber flavor you want here, I like to get the cucumber pretty thin, just thick enough to support the filling ingredients.
Fill. Add your sauces/spreads (mayo, mustard, cream cheese, avo, etc). Then layer the remaining ingredients. (NOTE: The amount of each filling ingredient you use will depend on the size of your cucumber, and how you like your sandwiches. These are provided to give you a better idea of the nutritional information). Slice your sandwiches in half, and enjoy!
Notes
Nutritional information is for half the sandwich. Here is the nutritional information per sandwich based on the measurements above:
For the "Italian". Carbs: 7.5g | Net Carbs: 2.5g | Calories: 405 | Protein: 23g | Fat: 31g
For the "Californian". Carbs: 11g | Net Carbs: 6g | Calories: 225 | Protein: 14g | Fat: 15g
For the "Meat Lover's". Carbs: 6g | Net Carbs: 4g | Calories: 341 | Protein: 24g | Fat: 24g