Ah. You have my sympathy.
My experience - It depends on your access to factory-made or restaurant/takeaway low-carb food. And your planning in advance! I, alas, do not have access to low-carb made by others' food that I could order and have delivered to my door, one it doesn't exist in my entire home country (NZ), and, two, it's the summer hols and I am not urban-side (even if it did exist, which it doesn't, etc etc).
I have often been online shopping and felt very envious of folks living States-side for the amount of low-carb in supermarkets and orderable options, living in and amongst big populations. And I guess London/GB generally of course would be likewise etc etc. So for you - do a good online low carb food shopping research session! In advance.
For me, due to lack of access and availability of orderable low carb, I must cook it myself. I hate cooking actually, but I do it a lot in order to live as long as I can etc etc with T2. So I cook in bulk certain items, and keep the excess frozen or in the fridge, with some low-carb staples always available. And, I have gotten very meat/poultry/fish/seafood and salad focussed. Very easy to cook and great LCHF fare and takes next to no time, especially as I buy the pre-prepared salads so I just pour it into a bowl and add my own LCHF dressings. In the cold season(s) I use wokked frozen veg a lot, with the meat/poultry/seafood/fish thing - very quick and easy and very LCHF. This entails good shopping - and good freezer space! And a microwave of course to defrost frozen meats etc quickly. Konjac root noodles and pasta substitutes are a must in my own pantry, as a safe filler when necessary, or just when desired and I can't be bothered spiralizing zucchini for 'zoodles'. The konjac root noodles are really easy and quick to prepare. I have heaps in my pantry.
What do I cook in excess and freeze? Fathead pizza bases. Homemade sugar free pasta/pizza/red sauce. Low-carb baked goods, especially almond flour breakfast rolls. I also do bone broth and have lots of it frozen - but that is for the serious LCHFers probably and IFers/fasters for when low-fooding or fasting, and I don't know if you are going that route also. I have lots of frozen prawns and frozen veg mixes so I never get caught out. For fun - low carb/sugar free fun drinks in the summer, stevia sweetened chocolate at all times. As I am very carb intolerant and love my food, I make sure I don't get caught out by not having these staples at home.
I hope you do have access to orderable and deliverable low-carb fare! Otherwise - you may have to do what I did and learn to cook afresh, and have a very pleasant and efficient cooking space/kitchen.
