Yes. Here, it also means more...
-worthy (suffix)
-worthy is used to form adjectives with the meaning "deserving of, fit for":
news + -worthy → newsworthy (= fit for the news);
trust + -worthy → trustworthy.
So, tableworthy is a formed adjective via the -worthy suffix. It means deserving of being served at the table.
But, to explain the meaning in detail, you have another pattern at work with this word:
As … as (adjective pattern)
We use as + adjective/adverb + as to make comparisons when the things we are comparing are equal in some way:
The world’s biggest bull is as big as a small elephant.
The as [adjective] as adjective here uses your word tableworthy.
as tableworthy as your turkey
A Thanksgiving turkey is the pinnacle, most celebrated, central dish at the table. If one were to server bread as tableworthy as your turkey for a Thanksgiving dinner, that must be amazing bread!