Soak beans in water over night.
Place the thyme, rosemary and parsley into a mortar and pestle with a little sea salt, black pepper and 1 tsp lemon juice and grind to a smooth consistency.
Add a little olive oil and rub the chicken breasts with this mix.
In a tray or dish that will be large enough to accommodate the 4 breasts add some olive oil.
Then gently add the chicken until they are all submerged.
Add the garlic and place in the fridge overnight.
Preheat oven to 180 ℃ (350 ℉).
Drain and rinse the beans well.
Chop prosciutto and cook it in a pan until crispy.
Remove the chicken from the oil and allow to drain.
Place the beans in a saucepan with the stock and simmer for 35 minutes or until al'dente, (you may need to add water depending on the type of bean used).
Drain the beans and place them in a large mixing bowl.
In a non-stick fry pan sear the chicken over med-high heat until firmly crusted with the herb mixture.
Transfer the chicken to an ovenproof dish and bake for a further 7 minutes.
Add the crispy prosciutto, oregano, lemon juice and a good drizzle of extra virgin to the beans, season to taste with salt and pepper.
Serve chicken with bean salad and a nice white such as a relatively young Sauvignon Blanc.