Coat your chicken in 1 tsp oregano, the juice of half a lemon, a generous pinch of salt and pepper, and 1 tbsp of olive oil. Set aside in the fridge.
Slice the potatoes into thick fries. Rinse in cold water to remove the excess starch. Place on a baking tray and drizzle 1 tbsp olive oil, 1 tbsp of oregano and a pinch of salt. Toss with your hands and pop in the oven for 30-40 minutes, rotating half way through.
For the tzatziki , combine the Greek yogurt, juice of half a lemon, ⅓ grated cucumber and a generous pinch of salt. (If you have a lime this is more traditional but I only had lemons- still tastes great)
Combine the remaining cucumber, salad tomatoes and red onion to form the greek salad element.
Remove the chicken from the fridge and add to a preheated frying pan on a high heat. Add the chicken and leave to char for 5 minutes and then rotate and cook for a further 4 minutes, reducing the heat to medium.
Divide into meal prep containers and add some fresh parsley for some added fanciness. If you want to have the chicken and chips warm, store that separately so you can heat it up and pop it on top of the salad. Top with some fresh parsley and a generous sprinkle of crumbled feta.