Yuletide magical greetings, Hailey! Welcome to planDisney. 
I can hardly believe it's almost the 
most magical time of the year at Walt Disney World. Before we know it, the Halloween pumpkins will be replaced with holiday lights and festive pixie dust! It's so exciting. 
I'm also very excited to hear that you have a reservation at 
California Grill! Oh my twinkling garland, you are going to have the most delicious meal with a fabulous view! While I'm not sure of the exact time of your dining reservation, I can confirm that, according to the Walt Disney World website, the Happily Ever After fireworks show will not take place on the date of your reservation. Instead, you will be able to enjoy the stunning 
Minnie's Wonderful Christmastime Fireworks, which will begin at 8:30 PM. Although I don't expect any schedule changes, it's a good idea to check the 
Hours & Events Calendar closer to your trip, just in case there are any updates. I hope your dinner reservation time works with the fireworks schedule. 
You have so much holly-jolly fun to look forward to. There truly is nothing like spending 
Christmas in The Most Magical Place on Earth. I hope you get to visit 
Disney Springs, try all the delicious holiday foods, and experience the 
EPCOT International Festival of the Holidays. The Holiday Cookie Stroll is a favorite tradition in my family.
Hailey, I'm so happy you stopped by with your question. We are Guests just like you, and we love helping you plan for the magic, especially holiday magic! You are always as welcome as can be, so visit us anytime! 
Have yourself a magical little Christmas! 
Shonette