Clearly the soft shell. Hard shell tacos are a misnomer. They are actually self-contained nachos masquerading as sammiches. What a calzone is to a pizza… A calzone also being a sandwich, obviously.Hard shell or soft? I don’t think the hard shell goes in without breakage.
Point of clarification - what’s the difference between a soft taco sandwich and a burrito sandwich?
Second point of clarification - I’m referring to the gas station sandwich protectors, not the OPs empanada holder.