MrsPete - that sounds amazing. I love doing quick freezer meals, especially since DH and I work weird hours. It saves us from a lot of takeout and frozen pizza. I'll have to make up a batch.
For saving money on infrequently used food ingredients, I use ice cube trays, freeze it, and then vacuum seal in a ziploc bag, the ones with a valve and little hand pump. For ginger, I buy a ton, then grate it through my food processor. You can do the same trick with fresh herbs with a tiny bit of water. It's also great to freeze dregs of wine for later cooking, the extra chipotle peppers from a can, or anything else that you may only use small amounts of. Oh, and if the coffee in the pot gets cold, freeze the remains and use in iced coffee or pour Baileys over it. You can even freeze egg whites or yolks, if you have a recipe that calls for only one of them.