Heat oven to 180C/160C fan/gas 4.
Heat the oil in a large, deep frying pan or
wok, then cook the onions for 5-10 mins
or until they start to colour. Add the
chorizo, peppers and some seasoning,
and cook for a few mins. Pour in the
passata with 150ml water, then cover
and cook for 10 mins.
Meanwhile, beat the fromage frais
and egg with the cheese, then season.
Spoon a third of the tomato sauce
mixture into the base of a deep lasagne
dish. Put 3 sheets of lasagne in a single
layer on top, then cover with a third
more sauce and 3 more lasagne sheets.
Cover with the remainder of the sauce
and sheets, then pour the cheese sauce
on top. Bake for 40-50 mins until the
topping is set and starting to colour.
Serve sprinkled with basil leaves.