Preheat the oven to 400 degrees F.
Line your rimmed baking sheet or shallow casserole dish with aluminum foil. Drizzle your pan with around 4 tbsp oil, and set aside.
In a shallow baking dish or small bowl whisk together the egg and whole milk, and set aside.
In another shallow dish/bowl combine the flour, bread crumbs, and seasoning.
Take one of the chicken breast fillets, and dip it in the egg mixture, making sure it is completely coated. Allow any excess egg to drip off.
Then place the piece of chicken in the breading mixture, and gently press the mixture into the chicken breast to help it stick, until the piece is completely coated in the breading.
Gently tap off any excess breading, and place the now-breaded chicken breast into your prepared baking dish.
Repeat with the remaining pieces of chicken, and place the breaded pieces onto your prepared baking dish/tray, being sure to keep the chicken in a single layer!
Drizzle roughly 4 tbsp of oil over the top of the breaded chicken, and place the dish in the hot oven.
Bake for 30-40 minutes, or until the outside of the chicken is golden brown and crispy, and it has reached an internal temperature of 165 degrees F.
Once the chicken is cooked through, flip each piece over and bake for an additional 3-5 minutes. This helps to create a more evenly crisp end result. But you can easily skip this step to save time!
Remove the chicken from the oven and serve immediately.
Enjoy!