Heat the oil in a large frying pan, then
sizzle the bacon for 4 mins until crisp.
Use a slotted spoon to scoop the bacon
into a large salad bowl. Use the fat in the
pan to fry the bread cubes until crisp,
then tip them in with the bacon. Tip a
splash more oil into the pan, very briefly
fry the mushrooms just to rid them of
their rawness, then turn off the heat.
When the mushrooms have cooled
slightly, tip them into the salad bowl
along with the beans and avocado.
Moments before serving, add the spinach
and dressing, then toss really well so
everything is coated.