I disagree with both of you.
OP
Use jars and tins as a stepping stone to home cooking.
OK easy meal one. Beans on toast.
Put two slices of bread in the toaster and switch on.
Open a tin of beans, if it is a large tin separate in to two containers, I use a jug and it can be Pyrex or plastic, cover with cling film, microwave on full power for 2 or 2.5 mins.
If you like butter then butter the toast when cooked, I usually have one whole piece of toast and one cut in two as they fit on the plate easily.
Pour over the beans and then eat.
Don't worry if the toast pops up before the beans are ready.
Second very easy meal.
Go to a supermarket, buy a stuffed fresh pasta eg Cappellacci or ravioli. Boil a kettle and put the boiling water in a pan on the heat.
Add the pasta, when it is cooked it will float to the top, drain through a sieve or colander, put in a bowl and add a knob of sated butter, the butter will melt.
This is a 'halfway' dish, once you are used to making it you can start making your own sauce to go with it.