For some non-meat variation on your BBQ, why not try preparing some Portobello mushrooms with prune filling.
8 Sunsweet prunes
200 g red and yellow cherry tomatoes
1 garlic glove
2 branches rosemary
60 g Gruyere cheese
2 tbsp. breadcrumbs
Salt, black pepper
8 Portobello mushrooms
Olive oil
Additional:
8 sheets of aluminum foil
MK2