Cucumber & Avocado Sandwich

This sandwich is quite yummy.... I learned this combination from a vegan friend.

First, spread some YELLOW MUSTARD on the BREAD of your choice.
(I've tried making this with a fancier stone-ground mustard, but somehow the plain yellow works better in the sandwich. Really!)
This time I used a vegan WHITE bread made by Rudi's Organic Bakery, but their SOURDOUGH or NUT & OAT would probably be my first choice.
(If you choose carefully, your sandwich can easily be vegan. Last week I was surprised to see that Whole Food's "365"-brand of sourdough has some milk in it. Not sure when/if that changed because I could swear their sourdough was vegan a few years ago. The packaging is different, so perhaps they changed suppliers.)

Peel and slice some ENGLISH CUCUMBER ... (I cut too much here... you'll want enough for a single layer. )

I put a little extra on here, but you'll pretty much want to stick to a single layer to reduce sliding.