I would also suggest adding to your meals things that will stretch out the meal. Such as rice, potatoes, making soups, eating oatmeal etc.
Cut back or remove the junk food. It costs more than any of us realize; health and finances.
Another suggestion is to look into meals from the Great depression era and from the world war II era. Those people had to make meals on little so they can teach us a thing or two.
Hope that helps some