In a large bowl, add the olive oil, lemon juice, salt and pepper. Whisk well and then add in the remaining salad ingredients. Set aside.
In a large cast iron skillet set to medium heat, add at least 1 tbsp olive oil for starting. In a bowl, add the cassava flour, onion powder, garlic powder and mix.
Season the chicken with salt and pepper. Dip the chicken one by one in the cassava flour and shake off excess flour. Working in batches, add the chicken and cook for about 4 minutes per side.
Remove and serve it on a plate and top it with arugula salad. Serve and enjoy!