How to make baby food

I always used to cook and mash big portions, then weigh them out and freeze them. You'll naturally notice if they've had enough. I always made different combinations so there were always new flavors in the freezer. And if I had leftover potatoes, veggies, or meat from our own meals, I'd make baby food out of that too. We eat potatoes without salt, so that worked fine.

We also made a lot at once and only weighed and froze after pureeing. That way we could get a head start again We also gave a jar to the daycare center.

It's handy to have some containers or jars, like Avant, but they are a bit more expensive. You can also buy square containers at Xenos that are suitable for the freezer.

And otherwise, it can just be in sandwich bags.

I also prepared some jars, but pretty quickly I started making a mash for us on the fly with the hand blender, just by feel: about half a potato, 2 big spoons of veggies, and a piece of (unseasoned) meat (make sure to boil the potatoes and veggies without salt), and the jars just stayed in the freezer.
So for that one time we went out to eat, I just grabbed a jar from the supermarket just as quickly.

Have you considered RLBW (baby-led weaning)? It saves a TON of work. You let your baby (from 6 months) eat along with you from the pot. Just make sure to cook without salt and not too spicy if needed.

We found, and still find, it ideal. No jars, no purees, no mashed food. No separate baby food, and you can quickly grab a bite for yourself while eating. Baby eats by themselves; at first they might eat a bit less because they're still learning everything, but that's just as much work as feeding them spoon by spoon. And you have to clean up after every meal anyway, so that's manageable too.

If I read this right, you're not giving it yet? Then I wouldn't assume right away that your baby wants 200g of something they're not used to.
I never weighed it. Just cooked up the amount and filled the pots from Advent onwards. Usually, he eats as much as he can handle, with the pot along, but it's mashed.