As noted in the link I gave you in your original post, there is no Lawn Club Grill on the Solstice. On the ships that have one, it's generally not open for lunch.
Sushi on 5 might serve ahi tuna.
I asked for one, and the steward placed it on the nightstand I wasn't using. The next day, he changed the sheets and somehow captured the (empty) laundry bag. I had to ask for another one. 😀
On the Constellation TA, the upper level of the main dining room was available every day from 10-4 for card and game players. It was in the daily program.
Not sure that's an every cruise thing, but it might be.
If she's got a few weeks, she might try shopping online and returning items that don't work after the cruise.
If you'd consider renting a car, the Avenue at Viera is a nice shopping center with a few women's clothing stores.
Some posters will end up reading the whole thread, not just your latest post, and respond to questions that are years old. Sometimes you'll see these called "zombie" threads because they're raised from the dead.
MDR is nice for breakfast. The hours are short, though: something like 7:30-9. You will be offered coffee or tea and pastries, then a waiter takes your order. Plenty of fruit, cereals, omelet choices, sides. Takes maybe 30-45 minutes.