I don't really do breakfast downtown but there's some good suggestions in the I Love Memphis blog
https://ilovememphisblog.com/downtownbreakfast
For lunch/dinner, if you like fried chicken, hit Gus' on Front St you'll just need to avoid the construction on Front around Beale.
If you want BBQ...
I wondered how Grind City had made it so far north when I saw your pic of Poppys, now I know that you must be visiting. Welcome to Memphis. I work less than a mile from the Peabody (and even closer to the Saucer you were at the other day)
Packing for a flight to FL tomorrow. Orlando'ish to drop my son off with my parents then St. Augustine with the wife for fall break/anniversary shenanigans for the week