I couldn't find the whole song, but here's an excerpt, transcribed from a sound sample found at Barnes & Noble

TATER PIE (western swing version)

SPOKEN: (Ah, pass me my pie, Pappy.—Yeah!—Let's go, guys!)

I'm lookin' for a gal that cooks.
I don't care much the way she looks.
I'll be hers until I die
If she can make a 'tater pie.

CHORUS: Pie, pie, 'tater pie,
P-I-E, E-I-P, pie, ...

[As sung by Bob Wills and His Texas Playboys on "Boot Heel Drag: The MGM Years," Uptown/Universal 2-CD set 170206, 2001. The same verse is sung by Hank Penny on the anthology "Solid South: Western Swing on Los Angeles Radio 1950s," 2000.]