1. Preheat oven to 350.
2. Grease 13" x 9" x 2" baking dish.
3. Brown sausage in skillet over medium heat. Drain fat.
4. In large bowl, beat eggs. Add biscuit mix and milk, blend well.
5. Stir in sausage, cheese and oregano.
6. Put mixture in baking dish and cook 50 minutes (do not cover) or until a toothpick put in the center of dish comes out clean.