1st toast/grill/pan heat both the bread pieces.

Then once its on the verge to reach room temperature put the cucumber and tomato slices on it.

After that aply the cheese before its on room temperature and then sprinkle over the piri piri on the cheese.

After all that put the 2ndpiece of bread over it and cut the bread and slice it in 2 or 4 slices accprding to your wish.