Frenchielover

Hi, I'm new to forums but just taking a lot of interest in home-cooked meals as my little frenchie has been having really bad stomach upsets, runny poo and vomiting after meals. So i'm trialing a few recipes, which seem to be helping, my only concern is; is home-cooking cost effective vs pre made dog food? And how much do you all spend on meals for your dog? Any feedback or suggestions would be greatly appreciated? Thanks Frenchielover :)