Preheat oven to 220°C
To make the hummus base, mix the hummus, tomato paste, minced garlic and dried oregano together
Slice the eggplant and zucchini into thin rounds. Remove seeds and pith from capsicum and slice into thin strips
Place a large frying pan on high heat and add olive oil. Fry the sliced vegetables for approximately 2 minutes on either side, or until browned, then set aside
To assemble the pizza, place Lebanese bread on a baking tray, one per tray to avoid over-crowding
Divide the hummus in half and evenly spread over each piece of the Lebanese bread
Divide the grilled vegetables, olives and artichokes between the two pieces of Lebanese bread, and add 1/4 of the basil leaves to each pizza
Bake in your preheated oven for 10-12 minutes
Carefully remove from oven, and top with fresh basil leaves. Cut into slices and enjoy!
(Optional) sprinkle on some nutritional yeast at the end to add an umami flavour