I cannot stress this enough... just slap some sliced avocado between two pieces of bread and your condiment of choice and you have a delicious, filling, and cost-effective meal! Just sayin'.
An absolutely killer avocado sandwich can be found at Cavanaugh's on Sansom between 18th and 19th. It's the Turkey Avocado Club...a club sandwich with sliced avocado...PLUS a side of tater tots. Seriously, how can you go wrong? :D
Whole Foods used to make a killer sandwich: Sliced turkey, pepper jack cheese, avocado slices, tomato, a green (I preferred alfalfa sprouts) with chipotle mayo on a whole grain bread. I miss their sandwich making area. Why they thought we need another source of pizza slices, I'll never know.