Seems kinda odd a bedroom door straight into the kitchen...and it took up good cabinet space.. See bottom picture.
We needed to rip 2x6's to 4 3/4 inches to make everything work. The door opening is framed out with 3 of those 2x6s [4/34]
First coat of drywall mud. They like the blue board or green not the white in the kitchen. A little more water proof then the white. Same in the bathroom.