1. Set oven to 350 degrees.
2. Grease an 8-inch square baking dish.
3. Season the chicken with seasoned salt and pepper; then coat in flour.
4. Roll floured chicken breasts in the beaten egg, then coat in breadcrumbs.
5. Heat the oil and butter in a medium skillet; brown the breasts on both sides.
6. Place in baking dish; set aside.
7. In a bowl, mix together the blue cheese, sour cream and garlic.
8. Pour over the chicken breasts in the dish.
9. Cover, and bake for 35 minutes, or until the chicken is done.