Hi
Tracie!
Cape May Café is a wonderful Disney Character Dining experience located at Disney's Beach Club Resort. There your family will be able to meet Minnie, Goofy, and Donald. They will be dressed in their beach outfits.
Chef Mickey's is located at Disney's Contemporary Resort. There you will interact with Mickey, Minnie, Donald, Goofy, and Pluto. They will be wearing their culinary outfits. Therefore, if your 2 year old
has to see Mickey, I would recommend not changing your reservation because he won't be at Cape May Café. I suggest calling Disney Dining at (407) WDW-DINE to inquire as to whether or not you might be able to add Guests to your already existing reservation. It may be possible to change it in order to accommodate the entire travel party. Please let me know if I can answer any other questions for you.
Enjoy a most magical visit to the Walt Disney World Resort!