Step #2 In a bowl, grated garlic, mix the tuna, black olives, sliced parsley & breadcrumbs until you have a smooth mixture.
Step #3 Spice up with salt & pepper.
Step #4 Cut the peppers in half & remove the seeds but leaving the stalks intact (they are not edible but they do look attractive & they help the pepper halves to keep their shape).
Step #5 Stuff each half with 3-4 tbsp of the mixture.
Step #6 Place on a well-greased baking tray.
Step #7 Drizzle the top this with olive oil & bake the capsicums in top shelf of the oven for about 45-50 mins.
Step #8 Remove from oven & transfer them onto a serving dish, with all the juices from the tray poured over the peppers.
Step #9 Drizzle with a little more of olive oil if desired.