According to Cancer Research UK cooking meat on a BBQ or gas grill is not recommended because of the cancer causing toxic deposits that get on it. Marinading the meat before hand as you did can help lessen the problem.
Cut off any blackened parts before eating.

For a grill I like to cater with veggie kebabs, containing green bell peppers, mushrooms, onions, cocktail tomatoes, butternut, zucchini, some olive oil and seasoning

For a healthier dessert I make meringues (sp?) in the shape of a nest and fill them (after baking)with berries. You can flavor the meringues with unsweetened coco and fill with raspberries. Make berry parfaits with layers of berries and a mixture of your favorite yogurt mixed with lite cool whip. Can also be used at parties to dip fruit.