I keep these in tupperware that is all the same size and stacked neatly on top of each other. When I cook, I make 3 or 4 meals to eat over the next few days, and I always put one or sometimes two portions in the freezer. This covers me for a day that could happen any time where I will be incapable of cooking, or when I will be able to cook something simple but out of fresh ingredients and unable to get more. On the tupperware lid, I stick down a post it note with masking tape. I write what is in the tupperware, and any actions I will need to take - any specific cooking instructions or if I will need to make pasta with it. I also write the date I made it.
In the first few months of freezing meals, I only had one or two meals in there at a time. Now, I sometimes have up to five cooked frozen meals in my freezer. It took a lot of work for me to get into this habit, and I'm glad to have got to this stage. I can only properly cook once every one or two weeks.
Examples of meals: roasted red onions, peppers, celery, and broccoli; spicy tomato sauce for pasta with spinach; coconut, chickpea, red lentil, and okra curry.
Here's what else I have in my freezer:
Chopped onions - this was a game-changer
Edamame - unshelled
Edamame - shelled (for a treat)
one Magnum left over from the summer
Small tub mince pie inspired ice cream from last xmas - loved it so much I kept it in case they discontinue it for this xmas
Small tub vanilla ice cream (for milkshakes)
Quorn burgers - they're only still in my freezer because I don't like them, and hope someone else will want them.
Steak and ale pies - also a game changer. I wasn't raised on oven food but it makes things much easier!
Samosas from a local south asian shop - I have these for lunch sometimes
Raspberries - for the days I run out of fresh fruit
Whole honey cake - I baked 2 cakes in one go, so I can have this one another day - less effort
Sliced bread - game changer! Never have to deal with mouldy bread
Ice cube tray with some cubes of finely chopped ginger
Once every couple of months I will get a frozen pizza but since I only have one freezer drawer, I don't have much space for it.
Until recently I always had chips in the freezer, but since I got diagnosed with PCOS I have been avoiding potatoes, and switching to wholegrains rather than white breads, pasta, rice etc.
I have frozen tortillas in the past when I didn't want all the packet at once. I made the most of that one