“There are four addictions in life: gambling, alcohol, shagging and Big Bite,” I was told by the guy in the sandwich-buying queue.

“Look, I’m getting the shakes right now,” his friend deadpanned, while totally immobile.

They told me their favourite filling and were a bit shocked that I hadn’t ordered likewise.

“I got the Roast Vegetable one,” I explained.

“Are you a vegetarian? Well, that one’s good – my girlfriend’s had it. She’s a vegetarian, I think.”

Aside from the semi-worry that he wasn’t entirely sure about his girlfriend’s vego status (surely, a relationship must?), the Big Bite fandom on show was pretty funny and 100% sincere. It would have to be, to survive the constant queuing this pair would endure to get their sandwich fix.

Blake and I weren’t so familiar with the place – it’s in one of those tiny anonymous arcades on Pitt Street that you’d never otherwise venture into (the type that doesn’t try at all to divert you from the footpath); we only knew about it from the Time Out Sydney Food Awards and Big Bite is one of those in-the-know secrets I’m glad the mag shared.

Blake had the salmon while I had the aforementioned Roast Vegetable ($8.50), which is loaded with potato, pumpkin, zucchini, grilled cheese, Roma tomatoes and other warm vegies generously, deliciously slathered in lemon and chive mayonnaise and basil oil. Any attempt to eat these mega sandwiches will defy the gripping capacities of your hands, there’s a massive filling-slide as soon as you bite in.

Sadly for me, Big Bite is only open during the week and is nowhere near my office, but Blake is lucky enough to work nearby (he’s adding it to his lunchtime rotation of places to eat). He might bump into those hardcore sandwich addicts in the queue again, they’ll be recognisable from their constant, unstoppable shakes.

Big Bite, Shop 3, 250 Pitt Street, Sydney NSW (02) 9283 4700