Duggar Family Thanksgiving 50 Mouths and Counting

11/24/2011 12:40 AM PST

Duggar Family Thanksgiving -- 50 Mouths and Counting

Just when you thought your family Thanksgiving was hectic -- TMZ has learned, the family from "19 Kids and Counting" is spending the holiday with another massive cohort ... totaling over 50 hungry mouths to feed.

Sources close to the Duggar family tell TMZ, they've invited the Vanderhoffs over for Thanksgiving festivities -- a nearby family of 23 that's also guest starring on an upcoming episode of "19 Kids."

Altogether, over 50 people are expected to chow down at Chez Duggar -- and the menu is suitably massive ... including two regular turkeys, two smoked turkeys, four turkey breasts, plus all the trimmings.

Meanwhile, dessert includes a total of 16 pies -- 10 pumpkin and 6 assorted ... pecan, apple, chocolate fudge ... we can go on.

As for what the family has planned for when they're not eating -- we're told the Duggars have already lined up a full array of family friendly games and ... okay, that's boring. MORE PIE PLEASE.