Crispy Baked Ravioli Lasagne with Mushrooms and Basil Pesto

This was my proudest lockdown creation – lasagne made with bought ravioli instead of lasagne sheets – I’ve made countless versions since. The tinned tomatoes cook down beautifully in the oven with the ravioli, with crème fraîche in place of a béchamel sauce – perfect for a quick and easy dinner. It might seem unusual to put the tinned tomatoes straight into the oven, but trust the process, it works really well.