I have a small pyrex dish the size of our small ice cube tray. The week before we go on a trip, I cook extra at each dinner and freeze the remainder in a plastic bag placed in the pyrex dish until it freezes. I then pile these frozen "bricks" on top of each other and rubber band them together. I do pot roast, salmon patties, casseroles, pork chops in gravy, meatloaf etc. As many bricks as will fit go into the freezer (usually 2 bricks), the remainder go frozen into the refer. A quick flash in the microwave or stovetop and dinner is on the table.
Our refrigerator is 4.5 cu ft and we do one week's worth of dinners this way.