I have lived alone a few times in the last few years even though I have been married for 19 years. My work sometimes leads me to "details" on other forests and I get a barracks room or an apartment.
We have a very large garden and I really enjoy home cookin' more than anything so I had to learn and I found that it is much much cheaper than eating out. My go to is to buy a whole chicken, potatoes, carrots, celery, and other vegetables that are tasty when cooked in chicken broth. I cook the chicken in the oven with all the cut vegetables in broth nestled around the bird. I cover with tin foil and bake it. I can get a couple 3 or 4 nights out of it.
Another cheap and healthy chicken meal is to buy one of those cheap rotisserie chickens that are always too overcooked and fall off the bone. De-bone the chicken an mix with mayonnaise, whole cranberries, and celery or apple chunks. I like to make a Walnut Chicken Salad Sandwich with cranberry sauce spread on a sour dough bread. I got that inspiration from a discontinued Arby's sandwich. You can get almost a whole week of lunch sandwiches out of a rotisserie chicken.
You can really save money if you don't mind eating the same thing night after night. That's how our ancestors did. They didn't have 130 different restaurants and Uber Eats. We try to live like that. We will go out to eat, maybe, once a 2 week pay period. We pickle a lot of our food and eat alot of eggs from our chickens. We grow squash, zucchini, tomatoes, potatoes, kale, okra, kale, ....
If you're looking for a good woman get yourself into gardening and hit up the farmers market. It will provide some income and attract women who eat healthy and ar into guys that prove they can provide.