Best way however is not to use VNAV at all and just use the normal approach mode for non-ILS approaches, boeing made it available for a reason with VNAV just being the inferior backup mechanic.
Denti, I am curious as to what you mean by "normal approach mode". Are you talking about HDG and V/S? If I am conducting a NPA such as VOR or NDB approach, I always prefer to use VNAV/LNAV because I believe when used properly they are the best option and they reduce the workload considerably.