Hi Amanda! How exciting to be planning your first visit to Walt Disney World! The
Kilimanjaro Safaris is one of the attractions operating during morning Extra Magic Hours, and you should have plenty of time to ride it along with a few other attractions before heading off to breakfast at Chef Mickey's. Other attractions that are generally open during morning Extra Magic Hours are Dinosaur, Expedition Everest, It's Tough to Be a Bug, and the Pangani Forest Exploration Trail. I'd recommend you ride the Safaris and Everest first since they usually have the longest lines, and then do the others if you have time.
To reach Chef Mickey's, you can catch a bus to the Contemporary Resort from the Animal Kingdom park. The ride takes about 25 minutes, and you may have to wait ten minutes or so for the bus to arrive, so I'd plan to be at the bus stop a little after 10 a.m.
Hope your first trip is magical! Come visit us again at the Moms Panel if you have more questions!