Take the bus to the Magic Kingdom. Upon boarding, let the driver know that you need to get to the Contemporary for breakfast. He or she will provide you with directions from that point. Sometimes they might be able to take you directly. In the case that they cannot, they will point out the walking path (underneath the monorail beam -- please only use the designated sidewalk and crosswalk), or they will show you the Monorail station (just follow the monorail beam in the opposite direction)