Preheat oven to 220 °C. Line an oven tray with baking paper.
Cook potatoes
Peel and mince 2 cloves garlic. Make crosswise cuts in each unpeeled potato, being careful not to cut all the way through. Place garlic and potatoes on the prepared oven tray, drizzle with 1 tbsp olive oil and season with 1 tbsp barbecue seasoning. Toss to coat then spread potatoes out, cut side up. Cook in the oven for 20-25 minutes or until tender and golden.
Prep chicken
Pat 600 g chicken breast dry. Place your hand flat on top of the chicken and slice through horizontally. Add ¼ cup cornflour to a plate or shallow bowl. Whisk 1 egg in a separate shallow bowl, and add 1 cup panko breadcrumbs to a separate plate. Coat the chicken in the flour, then dip into the egg to coat and then press firmly into the breadcrumbs to coat.
Cook chicken
Heat 1 tbsp olive oil in a large frypan over medium-high heat. Add crumbed chicken (cook in batches if needed), and cook for 3-4 minutes on each side, or until golden and cooked through. Transfer to a paper towel-lined plate.
Make dressing
In a large bowl whisk to combine 1 tbsp wholegrain mustard, 1 tbsp honey, 1 tbsp apple cider vinegar and 1 tbsp olive oil. Season to taste with salt and pepper.
Make salad
Slice 2 tomato into wedges. Peel and grate or julienne the 1 carrot. Slice 1 cucumber in half lengthways then thinly slice. Add tomatoes, carrot, cucumber and 1 cup mixed green salad to the bowl with the dressing. Toss to coat.
To serve
Divide the crispy chicken schnitty, hasselback potatoes and salad with honey mustard dressing between plates. Drizzle any leftover dressing over the potatoes.