Best last day/meal advice

Hello, I’m relatively new here. I ended up taking in my neighbor’s German shepherd when she had a mental break.

That mental break has turned into a severe drug/homelessness problem, and it’s become clear she isn’t going to have a safe home for a long time.

I probably should have put Shadow down a while ago, but had hoped her person would come back to usher her through.

The appointment will be in our home Monday.

Any suggestions for the ultimate last meal? Foods they love but usually can’t have or just foods they love? She cannot get in a car, but I have a lake close by I could get her to- wondering if she’d like to swim or other activities she can enjoy with back hip issues.