where are you staying...cuz that's a super LONG day unless you're staying at Contemporary Resort. Otherwise, if you're driving your own car, you'll have to be getting up around 6 a.m. to get to Chef Mickey's for a 7 a.m. reservation. If you're taking Disney transportation not even sure you can get there by 7 a.m.? And then you're still going at 8 p.m. to get to Boma (again, do you have your own car? Because if not, it's not easy to go from resort to resort...you'll have to bus to TTC or a park & then take a bus to AKL.) Either way, lots of travel time.
Now if you are staying in the CR Tower, then the breakfast & lunch arrangements make sense, especially if you're going to be at MK that day anyway.
I would not try to do 3 meals with kids...a lot of travel time/ a lot of coming & going. We've done 3 meals a day a few times, and every time we've said Never Again. It's a lot of food, even spaced out 5-6 hours.