In a small bowl, mix together cream cheese and avocado. Add salt and pepper if desired.
Divide the cream cheese mixture between 6 sandwiches and spread on top of bread.
Top each sandwich with cucumber slices, sprouts, oil and vinegar, tomato slices, lettuce, and pepperoncini. Add more salt and pepper if needed. Top each sandwich with remaining bread slices and serve immediately.
Recipe by Tone and Tighten at https://tone-and-tighten.com/loaded-vegetable-sandwich.html