I bulk cook/OAMC and have for many years. For me it is the way to go. I shop and cook a bulk session every two weeks. This allows me to maximize sale shopping. I spend roughly $200 every time I shop and I make about 20 meals plus breakfast's and snacks. I stop at the farmers market weekly for veggies, fruit and deli meats for lunches. That runs maybe $50. So around $1000 a month for 6 people, 4 of which are starving to death teenagers. I pack everyone's lunch and I take bento every day to work. We might get pizza on really busy nights but that's not even every week. I get all my cleaning/household supplies at the dollar store too. I grill 20 marinated chicken breasts at a time and freeze them, for example. Or brown 10 pounds of ground beef, divide into quart sized bags and freeze. To me this is more about good time management but the savings is a very attractive feature as well.