Please buy a cook book. Simple meals can be cooked from raw ingredients in as little as 30 minutes.
Pre-prepared meals may potentially avoid preservatives but may be high in fat, salt or sugar to get the "right taste".
Actually I found pre cooked meals to be no worse than what most people cook at home, and in a lot of cases they can be even healthier.
I'm a terrible cook, it would take me like 2 hours to make something thats meant to take 30 minutes. When I make cereal, I try to put the cereal back in fridge, and the milk in the cupboard and stand there totally dumbstruck and confused as to WTF am I doing wrong???

Hy would you want to use canned veg, total waste of time with no flavour or texture. No quicked than cooking fresh or frozen.
Not enough freezer space.