Pour breadcrumbs onto a large baking tray and give it a shake until they're evenly distributed. Coat with oil spray then place in the oven at 180C/350F for around 5mins, or until light golden (be vigilant as they turn perfect to burnt quite quickly!). Pour into a bowl to cool and increase oven temp to 220C/430F.
Horizontally slice the chicken breasts right through the centre to make 4 even-sized chicken breasts. In a small pot, combine 1 tsp salt & garlic powder with 1/2 tsp black pepper.
Line up 3 large shallow dishes: the first with flour and half of the seasoning mix, the second with beaten eggs and the third with breadcrumbs and the rest of the seasoning. One by one dredge the chicken breasts through the flour, into the egg, then finish in the breadcrumbs, making sure you thoroughly coat at each stage (namely the breadcrumbs). Shake off excess breadcrumbs then place on a large baking tray.
Liberally spray with oil, then place in the oven for 10mins. Take them out, carefully flip them over and spray them again with oil. Place back in the oven for another 8-10mins, or until deep golden and visibly crispy, with the meat white right through the centre. Switch oven to grill.
Spread pesto over the chicken, then top with mozzarella and finish with parmesan. Place them under the grill and broil until the cheese is golden and bubbly.
Optional Side Dish: In a large bowl whisk together extra virgin olive oil, balsamic vinegar, honey and salt & pepper to taste. Add rocket/arugula, sun dried tomatoes & pine nuts and toss to combine.