I had a pizza base in the cupboard that needed using. Luckily we had some fresh basil in the fridge and some cherry tomatoes, so with some passata, mozzarella, pepper and salt I was good to go. To top it off, I drizzled some olive oil from Maria's family in Abruzzo. We keep a bottle of it in the van pantry for occasions just like this.
(One of the pieces of 'specialist equipment' we keep in the van is a pizza stone ... first time we've pulled it from under the seat on this trip.)