Lay chicken thighs on a board and cover with cling film (pinch around the edges so no juices escape). Pound the chicken until level thickness, but not so much they start to break apart. Coat the thighs in seasoning and oil.
Heat up a griddle or frying pan over medium-high heat, then add your thighs (you may need to do this in two batches). Leave to fry until they start to char, then flip and liberally brush the cooked side with peri peri sauce. Continue frying until the other side chars and the thighs are piping hot through the centre.
Timings will depend on thickness of the thighs. If your thighs are fairly thick then consider lowering heat to a medium after flipping, just to ensure they cook right through without charring too much. Once cooked, remove from pan and place sauce side down, then brush again with peri peri sauce. Allow to rest, then just before needed slice into thin strips.
Meanwhile, slice your halloumi into 12-16 strips (3-4 per pita) then use paper towel to soak up any excess moisture. Lower pan heat to a medium heat and remove any chunks of char with your tongs. Leave chicken fat.
Add your halloumi strips and fry both sides until soft and grill marks appear (again, work in batches if you need).
Spread hummus inside your pita pockets, top with spinach, then halloumi, followed by roasted red peppers and finish with your chicken strips. Enjoy!