In a food processor place the onion and flat leaf parsley and blitz until finely chopped. Add this to the mince, tomato sauce, Worcester sauce, egg, seasoning and the breadcrumbs mix thoroughly. Make your classic burger shapes and refrigerate for about 20 minutes.
Heat your George Forman Grill add the slices of bacon and cook for a couple of minutes till they begin to crisp up, take off the grill and cover with a little foil. Then place the burger on the grill and cook for around 5 minutes, or until almost cooked, turning once. When nearly cooked to your liking open George and place a bacon rasher and a cheese slice on each burger, then put the grill top into melt mode for another few minutes and see the cheese begin to melt.
Spread hamburger bun bases with mayonnaise. Top with lettuce, tomato, beetroot, pineapple then add the burger. Cover with bun tops. Serve immediately for the ultimate upside down experience!