Mix the halloumi, bread crumbs and lemon zest together in a wide shallow bowl and season it with a little salt and pepper.
In another bowl, whisk the egg.
In another bowl, tip in the flour.
Crumb the chicken fillets by dipping them in the flour bowl. Shake off the excess then dip them in the egg. Let the excess egg drip off and then place them in the final bowl - the halloumi crumb. Press them in firmly so they're well coated.
Pre-heat the oven to 180C(356F) fan-forced.
Heat a little oil in a frying pan and cook the chicken for 2 minutes on each side until it is browned.
Transfer the fillets to a lined baking tray and cook them for a further 15 minutes or until cooked through.
Serve the chicken with vegetables or salad.