There are some factors beyond whether or not an animal has been raised organically that can affect meat quality. Being fed grass or grain has more impact on flavour.
Slow cooking was trending since the beginning of time. Ancient people prepared their food using plants, herbs, etc. Recent studies reveals that cooking of food increases the bio availability of some nutrients.
Herbs bring a dish to life with their fragrance. We perceive flavor mostly through smell, which herbs deliver via aromatic essential oils present in them.