You can easily make this ahead, and either refrigerate or freeze it.
TO FREEZE THE NUT ROAST:
Pop the nut roast mixture into the prepared loaf tin, then freeze unbaked for up to 3 months. When you’re ready to eat, defrost in the fridge the day before, then bake it as directed and continue the recipe from step 9.
TO REFRIGERATE THE NUT ROAST:
Bake the nut roast, then cool and store it tightly wrapped in the fridge for up to 3 days. To serve, turn it out, grate the cheese over the top, pour the warm salsa rosso over, and bake for the final 10 to 15 minutes, or until golden and hot through.
SALSA ROSSO:
Make the salsa rosso in a tray, then cool, cover and refrigerate it for up to 3 days, or freeze for up to 3 months. When you’re ready to serve, return it to the roasting tray and reheat on the hob until piping hot, then bake the nut roast on top for the final 10 to 15 minutes, or until bubbling and golden.