Pre-heat the oven to 200c (fan) / 275f convection or 400f bake.
Shred the mushrooms by running a fork along the fibres, away from the cap. Pull apart with fingers and place in a large bowl.
Add BBQ sauce to small bowl and whisk in splash of beer (optional).
In the large bowl of mushrooms shreds, add granulated garlic, ‘pork’ style seasoning, salt and pepper and toss to coat evenly. Heat cast-iron pan on med-high heat until hot, add oil. Add seasoned shrooms and cook until brown on all sides, stirring occasionally. Once the mushrooms are hot and crispy, transfer them back to the bowl and add BBQ sauce, stir to coat evenly. Place sauced shreds onto parchment lined baking tray, spread out evenly and roast for 10-15 minutes until browned and caramelized and cooked well, stir mid way if needed to evenly cook.
Butter rolls lightly on each open-faced side and place on hot skillet for 1 -2 minutes to grill until golden brown on the bottom. Assemble sandwiches. All the extras, optional!