Once or twice a month at least I get together with two other single ladies and we cook and eat a meal together, usually on a day we are making jam and canning it, or just canning produce. This way, whether the canned items are for personal stock or gifts, we are meeting our needs. When we cook, we always make enough so each person gets leftovers, too, so there are at least two meals each from one.
The most difficult part is making/taking the time to cook good meals, and getting a variety of meals together.
I remember reading an article here on the Stretcher about coworkers forming a lunch club or friends doing a dinner (supper?) club, where there are four participants and each does a complete lunch or dinner for four, dinner club members take turns meeting at each other's house, and everyone shows up with their meals for four and they swap out. Of course lunches would likely take place at a workplace, but same idea. Then you would automatically have a variety of foods. This would work provided you all have similar tastes and/or agreed ahead of time about foods to not use, for allergy, religious or personal preference reasons. Have any of you tried this?
Bachelors can cook if they put their minds to it and many men can be better cooks than many women. Those lacking expertise, however, well, someone just needs to lead them into a bookstore and show them the 4, 5, and 6 ingredient cookbooks.
That way, they don't need to live on
!
I look for individual Corning dishes and old-fashioned refrigerator dishes in which to put condiments, sherbet dishes for puddings. I have different kinds of dishes -- depression-era glassware, some of Grandma's Vermillion Poppy, some Harker Blue Cameo, some Iris square plates, everyday Corning with pansies. I may also still have one of those snack sets with four plates/cups. I vary the dishes to suit either my mood or the food, and don't need a dozen of each on hand, which is really an advantage for a single person. I have a small collection of placemats and lots of cloth napkins and 40's tablecloths. Dining alone doesn't need to be drab. At least, it isn't here. 
I do have a couple of cookbooks for one, but I do like making larger batches and freezing individual portions.
It's also good to add those little touches, even if it's a humble sprig of parsley or some mushrooms or onions topping the beef, or a sauce.