Preheat the oven to 170 ° C / 338 °F for fan and 180 ° C / 325 F for conventional oven, Prepare an oven dish with nonstick spray.
Add the softened cream cheese, chopped parsley, juice, and zest of one lemon into a mixing bowl and mix until well combined and set aside.
In another bowl add the tuna, mayonnaise, seafood rub, and grated cheddar cheese, season with salt and pepper, and mix until well combined.
Roll the dough out onto a floured surface, roll it out, about 1.5cm in thickness then using a pallet knife or the back of a dessert spoon, spread the cream cheese mixture evenly onto the rolled-out dough.
Then spread the tuna mixture evenly over the cream cheese and roll the dough up, lengthwise into a long log shape.
Shape the roll to even thickness, then using a sharp knife, cut the log up into 2cm pieces.
Place the rolls into the baking tray, cover, allow to rise for about 20 minutes before topping with some more grated cheddar cheese, and sprinkle with paprika.
Place into the oven to bake for 30 minutes or until golden in color, depending on your oven, if you want it more golden bake for longer.