Restoring Nandroid Question

Pardon my ignorance on the subject, i have not dealt with nandroid to much in the past. I have been pushed the new monthly update, and I am rooted. (I Know I cannot update while rooted! and am fully prepared to flash the files) My question is this, I have made a nandroid backup using TWRP, it is obviously for a different going to be for build, after I flash the updated files. I get that I can flash that and can go back to the previous build, but is there anyway to just restore apps from a nandroid backup, and not have to go back to the previous build? Or would I have better luck using something like Titanium w/ a pro key?
Thanks