Hi Kashuna!
Fantasmic! operates on select evenings, some evenings performing two shows. The show is 25-minutes in length at set times and features exciting fireworks, water and character appearances.
ADRs are indeed available for both lunch time and dinner time under the
Fantasmic! Meal Experience Package. The package includes both your meal and seated in a reserved section in the outdoor theater.
If you choose to dine at lunch time under the package, your reserved seating time will still be for an evening performance of the show. There are no daytime performances.
Upon completion of your lunch at The Hollywood Brown Derby or Mama Melrose's Ristorante Italiano, or dinner at those locations plus Hollywood & Vine, your server will present you with a voucher indicating your assigned show time and suggested arrival time at the theater for seating.
I hope I've alleviated your confusion and you're all set to decide on which meal and restaurant you'd like to dine at!
Enjoy Fantasmic!
I hope you'll visit me again to assist you further in the planning of your vacation.
Wishing you a simply Magical time at Walt Disney World Kashuna!
Kirsten