Drain the beans and corn. Clean and wash the salad, pluck into bite-sized pieces and drain. Peel and finely chop the onion. Season 3 tablespoons of vinegar with salt and pepper.
Fold in 3 tablespoons of oil. Mix the beans, corn and onion with the vinaigrette. Wash, clean and halve the tomatoes. Wash the chops, dab dry and brush with the remaining oil.
Season with salt and pepper and cook on the hot grill for 8-10 minutes. In the meantime, stir the ketchup with the rest of the vinegar, maple syrup and Worcester sauce until smooth. Brush the chops with it from time to time.
Season tomatoes with salt and pepper. Cook on the hot grill for 2-3 minutes. Mix the bean-corn salad with the salad. Arrange chops with grilled tomatoes, bean-corn salad and sour cream on plates.
Garnish with herbs. Barbeque ketchup tastes good with it.