I have 7mo twins
Won't repeat all above but re the freezing - I have lots of little pits with kids that a friend gave me, about the size of 2 ice cubes. I also use ice cube trays, then once frozen, pop them out and put in freezer bags labelled. If you take them out of the freezer for 5 mins before trying to pop them out they should come out easily.
I have lots and lots of frozen stuff, I then defrost a few different cubes and mix them instead of cooking actual recipes. I also use fruit puréed in the porridge and yoghurt. I take out whatever I need the night before and defrost overnight in the fridge.
Fruits- strawberries, raspberries, mango, peach, pear, apple, plum
Vege - sweet potato, mashed potato, butternut squash, spinach, courgette, parsnip, carrot
Sauces - cheese, tomato. I have also frozen a few pots of cooked rice ( this needs to be fast-chilled before freezing due to food poisoning risk)
Meat - I save a bit of roast chicken and put in freezer bags. I also have bought frozen chunks of salmon and cod which are the perfect size. I tend to try and save a bit of whatever we had the night before if possible.
So today for lunch they are having a bit of last nights chicken with some rice and butternut squash = risotto!
I started off with baby porridge at 25 weeks(4 grain plum organic) mixed with some pear purée. Gradually increased portion sizes and introduced different fruits. After a couple of weeks I started giving tea which was just a cube or so of vege. After another couple of weeks I introduced protein at tea, then I have just started giving lunch (they are 7 months) (and moved the protein meal to lunchtime , with a veggie/pasta meal for tea)
I was given a babycook which is a Steamer/reheater/blender and it's been a godsend. They are expensive though, do you have a blender already? I think you could reheat in a little pan or put the food in a plastic container in a jug of hor water maybe but to be honest I would struggle without a microwave