Two slices of sprouted grain bread (or any dense whole grain bread)
Light cream cheese - spread on both slices

Veggies:

Shredded carrots
Cucumbers
Sprouts
Red bell peppers
Roma tomatoes (add before serving so bread doesn't get mushy)
Spinach, lettuce, other greens
???

The cream cheese is a good "sticker" for the shredded carrots & sprouts so they stay put. You can also sprinkle with sunflower seeds.

You can substitute garden-type cream cheese, onion & chive - whatever floats your boat.