How To Plan Your Disney Vacation with a Dining Plan:
1) Get a piece of paper. and write out a chart. For your trip:
2) If you are basing your park choices on Extra Magic Hours, be sure to look those up.
Because I'm in the planning mood, I did you a favor and did that for you:
February 27th: MK EMH 8-11
If you don't want to hit the crowds at MK that night for EMH or you are tired from traveling, this might be a good night to eat at one of the resorts for dinner (Wishes fireworks are at 8:00 tonight, if you can grab a 7:15 or 7:30 reservation at Narcoossess or California Grill you will be able to see the fireworks). If you have some energy left after dinner, you are close enough to Magic Kingdom that you can run over and catch some rides between 9:30 p.m. and 11:00 p.m. OR you can even do Hoop Dee Doo, which would be a fun, somewhat low key start to your trip. Depending on what time you arrive, you could spend the afternoon at Animal Kingdom (try an early lunch at Tusker House) or Epcot (pick one of the recommended restaurants for an early lunch).
February 28th: DAK EMH 8-6
There is a Main Street Electrical Parade here tonight at 7:00 p.m., so, if you want to see the parade, this is probably a good day to plan on a 4:30 p.m. or 5:00 p.m. dinner at Crystal Palace or one of the other recommended restaurants. You want to eat at this time to allow plenty of time to stake out a place to watch the parade. Since dinner is so early, you could go to DHS or Epcot for their regular opening times, and have an early lunch at one of these parks.
March 1st: EPCOT EMH 8-9; DHS EMH 7-10
What about a character breakfast at Donald's (in Tusker House) if you are planning on being at Animal Kingdom at opening or Chef Mickey's (or Ohana, Cinderella's Royal Table, or Crystal Palace) if you are planning on Magic Kingdom at opening? You could get up early this morning and eat before the park opens (schedule the first breakfast time to be on the rides when the park opens), or you could do the latest breakfast they have: go to the park for opening, ride a bit then take a break for a late breakfast. If you spend the day at Animal Kingdom, you could take a bus from there to Animal Kingdom Lodge for a fairly early dinner at Boma or Jiko. If you still have some energy, then head over to Epcot for Illuminations or Magic Kingdom to catch a few rides before 9:00 p.m. to avoid the crowds at Hollywood Studios.
March 2nd: DAK EMH 8-6
Pick any park but Animal Kingdom if you want to sleep in a bit. Schedule a late lunch, then a 7:00 or 8:00 dinner at one of the 2 TS restaurants or do Hoop Dee Doo.
March 3rd: MK EMH 8-8
Fantasmic is at 7:30 p.m. tonight, so this would be a good day to schedule a Fantasmic dinner package. If you want to park hop, then a morning at Epcot or Animal Kingdom would be a nice combination with an evening performance of Fantasmic.
March 4th: EPCOT EMH 9-12 am
If you want to avoid the crowds, pick any park but Epcot, and decide what you want to do. This is a great day to pick some restaurants (except at Epcot) that you want to try, but haven't had a chance to schedule yet. Since it is the next to your last day, you might want to schedule one meal at one of your favorite park you know you will want to "revisit" before you leave tomorrow. How about 50's Prime Time if you are at Hollywood Studios? For dinner, pick a 2 TS restaurant you haven't tried yet.
March 5th: DHS EMH 8-7
End your trip with Epcot (for the Flower and Garden show) or any park but Hollywood Studios if you want to sleep in a bit. The last day is always a great day for a character meal that you haven't already done.
Now, looking at this schedule, you will decide which parks you want to go to on each day. If your family likes to do EMH, then revolve your restaurant choices around which parks have EMHs that day. But because of your park hopper flexibility, you actually can be pretty open to restaurant idea locations. Just try and make a BASIC idea of which park you're going to on which day.
3) Now you have 2 options:
The first is that you can call 1-800-WDW-DINE where you will be put on the phone with a WDW cast member who will make the reservations for you. This process often takes longer, but it's always fun to call WDW
The second choice is to go to
http://disneyworld.disney.go.com/reservations/dining/ and make your dining reservations RIGHT ONLINE. Yes, disney just added this wonderful option. It is so much more convenient. All of your options are spread out in front of you.
4) Then, once you get confirmation numbers for all of your choices, write them down on your chart so you know where you're going each day. It's that easy!
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Now I would also like to make some restaurant recommendations for you.
Assuming you are going to all four parks, my top TS picks would be:
Magic Kingdom:
#1 - The Crystal Palace (for breakfast, preferably)
#2 - Tony's Town Square Restaurant
#3 - Liberty Tree Tavern
At Epcot:
#1 - The Garden Grill
#2 - The Coral Reef
#3 - Le Cellier Steakhouse
#4 - Nine Dragons
#5 - Akershus (for breakfast) (if you have girls who LOVE the princesses)
At Disney's Hollywood Studios:
#1 - 50's Prime Time Cafe
At Disney's Animal Kingdom:
#1 - Tusker House
Outside of the Parks:
#1 - The Turf Club @ Saratoga Springs (if for some odd reason you end up there, this restaurant is BEYOND fantastic.)
#2 - Hoop Dee Doo Musical Revue @ Fort Wilderness
#3 - Ohana @ the Polynesian (breakfast)
#4 - Whispering Canyon @ Wilderness Lodge
Hope that helps

Have lots of fun planning! That's one of the best parts!