Preheat the oven to 180 degrees Celsius. Line a baking tray with baking parchment.
Slice the halloumi into 1cm slices. Lay them on the baking parchment and put in the oven for 25 minutes, or until golden.
Meanwhile, make the sriracha mayo by putting the sriracha and mayonnaise into a bowl and stirring until combined.
Cut the cucumber and tomatoes into small chunks. Finely chop the mint leaves. Put the cucumber, tomato and mint into a bowl and drizzle over the olive oil. Sprinkle with salt and pepper.
Put the pittas in the oven for the last two minutes of the halloumi cooking time. Remove from the oven, then cut the pittas along one side to create a pocket.
Spread the sriracha mayo inside each pitta. Stuff with the rocket and halloumi and serve with the salad on the side.