Slice tomatoes, pickle and onion. Heat the grillpan. Grill the onions shortly and set aside.
Cut the burger buns length wise and grill both sides until grill marks are showing.
Grill the Sensational burgers according to the instructions on the package. Cover the bun bottoms lightly with mayonnaise. Cover with lettuce and place the grilled burgers on it.
Top with tomato, red onion and pickle. Place the lid of the bun op top.