As I have discussed before, most patterns have a Casserole Spoon that is often referred to as a Berry Spoon. These pieces are some of the most ornate serving pieces in a pattern with elaborate designs of fruit and flowers on the bowl. Some companies will have more than one type of "casserole" piece in a pattern. Tiffany is one of these companies. Many of their patterns have a Kidney Bowl Casserole Serving piece. Here are some examples of those pieces.
Atlantis by Tiffany (9 1/2 inches)
Renaissance by Tiffany (9 3/4 inches)
Blackberry by Tiffany (9 1/2 inches)
Strawberry by Tiffany (9 1/2 inches)