I think one of the big ways of eating cheap is either omitting meat or extending it as much as you possibly can, and chicken is like the absolute best with doing that. By yourself, you could deconstruct the entire thing and get full meal out of each breast, then two or three using the legs, wings, and thighs. Roasting is the absolute best when you want something that requires very little effort that gives a great meal(when I roast, I like to make a spread with fresh crushed garlic, kosher salt, black pepper, onion powder, paprika, butter, and olive oil. I rub that all over the chicken so that when it roasts, it has the absolute best crunchy skin. I also put the chicken on a bed of chopped carrots and onions, then put a few potatoes cut in half around it too, typically covering those potatoes with my garlic-butter spread too), I live with too other people and we can get a pretty decent meal out of roast chicken, then I'll save it over night and then on the next day, I'll pick off it's meat for a chicken soup.