When my kids were still at home I did.
I only bought the bulk of my groceries when it was on sale. I would stock up on mainly those items. I had a large pantry area, and a freezer too.
I made out a list to include fresh foods, etc.. and then made a menu plan for the week. Often I would start food in the crockpot in the morning before leaving to go to work.
I also froze many meals, cooking 3-6 meals worth at a time.
I had to budget, but we all ate very well and healthy too :D:D:D