When I was growing up, we always had to be dressed and ready (backpacks ready, shoes on, etc.) before we could eat breakfast. I was always hungry when I woke up, so this rule worked for me!
Another idea would be to create a "morning story" where you type up a short story and add clip art telling the morning routine. Something like: "In the morning I will wake up. I will go to the bathroom. I will make my bed. I will get dressed. I will come downstairs and sit at the table to eat breakfast. After breakfast, I will put on my coat and shoe and go to school."
My third thought is to use the same idea, but make it hands-on for your child in the morning, like a flip chart. So, each time he completes a task, he turns the card and sees what to do next. This way, you just say - go look at your book - and don't have to nag or remind about every little thing.
One of the most important things for all of us in getting ready in the morning starts the night before when you lay out clothes, get lunch packed and backpack ready (homework/library books/teacher notes), so that there is less to worry about in the morning. Also, avoid having the tv on, so there isn't that distraction, and your son can focus on preparing for school.
Good luck!