Get yourself a pressure cooker. For that matter, get yourself a couple of pressure cookers.
Whether you like it or not, you are going to have to watch your energy usage. A pressure cooker allows you to create great meals for a very small fraction of the energy costs of conventional cooking. Yeah, you will have to learn how to cook differently, get over it, you will have to do a lot of things differently pretty soon.
Also get a canning pressure cooker. We are heading into a world where you make hay while the sun shines. If you get some surplus, you had better be able and ready to preserve it for the cold times. It might not hurt you to get some mason jars put aside as well. You can get them cheap at Goodwill.
Things are tightening up my friends, your preps may be useful soomer than you think, and your ability to keep them replenished will require more than going to Safeway's