I personally love this sandwich. I could eat this everyday and every meal. The options are endless and fairly healthy as well.
I recently eat more spelt bread rather than wheat bread. Spelt is a higher alkaline food and less altered by man than wheat. Whole wheat is just ok. Go for spelt if possible.
This version is my go to.
Unsalted almond butter
Sprinkle some flaxseed and hempseed (optional)