3 minutes job, if you have the pork belly already cooked.
Put the pork belly sliced inside the oven for 3 min at 180 just to rigenerate. Put in the oven some sliced bread too.
Take out the bread from the oven and add some mayo, placesome fresh spinach leaves on top, season them with some salt and some olive oil.
Now take the pork belly from the oven , place it on top of the spinach. Cut the sandwich and serve!
...I hope you enjoy
see you soon... ;)