Hi Christa,
Welcome back to the Disney Parks Moms Panel! Your Walt Disney World Resort vacation will be here before you know it. It sounds like you've been making some great plans.
I love having a dining reservation for before a park opens. Like you, I wondered how early entry to any of the parks would work. Fortunately, you have no cause for worry because the process is smooth. When you arrive at the entrance to
Magic Kingdom Park, you should see a line with a Cast Member checking guests in. This Cast Member typically has a clipboard or tablet. They will verify your dining reservation and then you will enter the park. It's a lovely feeling to enter the park when there aren't as many guests there. Enjoy your walk down Main Street, U.S.A. to
The Plaza Restaurant for your delicious breakfast.
Since you are visiting in May, I hope you're also planning to visit the
Epcot International Flower & Garden Festival. The flowers and topiary displays are so imaginative and there are delightful dishes and tasty beverages to try at the Outdoor Kitchens. We visit during this time almost every year and are never disappointed!
Christa, thank you for visiting us with another great question. I hope you will let us know if we can help you with any other planning questions.
Wishing you a magical vacation,
Amy H.