Ocado 4 Large Seeded Burger Buns. 4 Large white burger buns topped with sesame seeds. These large, soft, white buns are the perfect partner for your BBQ burgers on a warm summer's day. Serve with a delicious mixed salad and dips, corn on the cob or buffalo cauliflower 'wings'. Got family and friends coming to visit? Search 'Ocado BBQ' for lots of tasty options including sausages and salmon, chicken and chorizo.