Most kitchen gear advice is written for people who cook regularly for four or more. A 28cm cast iron skillet, a 5-litre stockpot, a full set of matching pans - this equipment makes sense in that context. In a solo kitchen, half of it is just things to move when you're looking for the pan you actually use.
This is the most important piece of equipment in a solo kitchen. It's right for eggs (always), for searing one chicken thigh, for a single-serving stir-fry, for a small omelette. A 24cm pan is too big - a single egg spreads thin and cooks too fast. A 20cm pan, properly seasoned non-stick, does everything. Budget option: any decent non-stick in the £15-25 range. Don't spend more than £35 - non-stick coatings degrade over time regardless of price, and you'll replace it every few years.
For one portion of pasta water (1.5 litres is plenty), soups scaled to one, single-serve sauces, cooking a single portion of grains. A larger saucepan means your sauce spreads too thin, reduces too fast, and scorches more easily. 16cm is the right size for one person's sauce or liquid cooking.
For roasting a single portion of veg, for one chicken thigh in the oven, for the solo date night salmon. A full-sized baking sheet is too big - the food spreads out too thinly, the pan edges too far from the food, and it takes longer to heat. A smaller pan roasts more efficiently for small quantities.
One good knife, kept sharp, handles everything. An 18cm chef's knife is the right size for a solo kitchen - large enough to be efficient, small enough to control for detailed work. Spend £30-60 on a decent knife (Victorinox Fibrox is the standard recommendation at this price point) and learn to keep it sharp with a honing steel. A sharp £40 knife outperforms a blunt £200 knife on every task.
You do not need: a bread knife (a sharp chef's knife handles bread), a paring knife (useful but not essential), a carving knife (you're not carving turkeys), or any specialist single-use tool.
Good single-portion storage containers make batch cooking viable and reduce waste. The format matters: you want containers in two or three sizes that stack neatly. A set of 300ml and 500ml glass containers with lids (glass because you can see what's in them, heat them directly, and they don't absorb smells) covers 90% of storage needs. Plastic is fine too - the key is consistent sizing so they stack without chaos.
Small zip-lock bags (sandwich size) are useful for freezing single portions of grains flat. Label everything before it goes in the freezer - masking tape and a marker is the system that actually works.
Once you have the core equipment sorted, these are genuinely useful second-tier additions:
20cm non-stick pan (£20) + 16cm saucepan (£15) + small sheet pan (£10) + chef's knife (£40) + storage containers, 6-piece set (£20) + kitchen scales (£10) = roughly £115. Everything else is optional. This covers everything described in the complete cooking for one guide and all the recipes in the supporting articles.