The Non vegetarian recipes of Awadh are influenced from the Nawabs of Awadh, who were rulers of the Persian origin and settled in India. The dishes were always rich in nuts, saffron, spices and ghee. With time, the Persian rulers, just like the Mughals developed liking for chilies and a few other spices in India and developed new flavors and dishes. In modern times, the famous Awadhi Murgh Musallam, kebabs and Biryani are a gift from those ancient times.
Awadhi recipes are not only different from Hyderabadi cuisine but also different from the Lucknowi cuisine. Very few people understand that Awadh and Lucknow could be names of the same region, even then the recipes are very different. Awadhi recipes are more ancient and depict the flavors from Persia more than the Lucknowi cuisine.
One thing that holds a very distinct flavor, is the idea of using whole spices, as opposed to the use of a ready made masala. The masala used in Awadh Biryani has to be grounded just before you start cooking, to keep the flavor and fragrance intact. The original Lucknow Biryani does not require you to grind the spices, they keep it whole.
The Awadh Biryani can also be made in Vegetarian style and hopefully, I will try it soon and post it as well.