The Rules
This pie has 12 slices. Fill in the grid using the numbers 1-12. Each number can appear only once in each region of the pie. There are three types of regions. Region 1: the six rings that go around the pie. Region 2: each of the six adjacent pairs. Region 3: a slice and the slice directly opposite of it.
I.E. The sweet potato and the pumpkin slices are an adjacent pair, while the sweet potato and the nectarine are an opposite match.
Solve for: A, B, C, D
N 47° 4A.BB0
W 122° 2C.0BD

Congrats to Cornbeefcache for FTF