Slice the chicken in half, horizontally, creating two thin cutlets.
Drizzle the chicken with olive oil then season with the herbs, salt and pepper on both sides.
Heat a large skillet or frying pan over medium-high heat then add the chicken and sear until golden brown on both sides.
Remove from the pan and set aside.
Melt the butter in the same pan then add the garlic and mushrooms and cook for 5 minutes.
Pour in the stock and lemon juice then add the chicken and any of its resting juices back to the pan.
Simmer for 5 minutes until the chicken is cooked through.
To make the cauliflower mash, steam the cauliflower until tender then mash with a splash of cream or milk, a tablespoon of butter, salt and pepper. I use an immersion blender to get the smoothest purée.
Serve the cauliflower topped with the chicken and mushrooms and spoon over the pan sauce. 2