Easy Soft Pineapple Ham and Cheese Buns

INGREDIENTS DOUGH 520g bread flour 2 eggs 270g warm milk 60g caster sugar 30g milk powder 6g instant yeast 6g salt 50g unsalted butter FILLING 400g Mozzarella cheese 300g drained pineapple (from can) 200g ham 140g tomato paste 1 egg for egg wash