Melodie makes a good point about freezing not being the most dependable way to secure food, especially if your power availability might come into question. Freezing is the easiest way to preserve food.
When we were first starting out we could only afford used freezers. We lost 3 freezers full of food in 5 years. Old freezers use way to much electricity to be viable for any length of time. A full freezer, even if it is just bread, will same energy. Save energy by keeping your freezer cool, it is ok outside. Our new freezer is larger and uses less than a quarter the electricity the old ones used. Old freezers are good for storing feed to keep the mice out. We turned ours into a smoker, but that is a story for another day.
Old school had you blanch vegetables in boiling water before freezing them but this denigrates the nutrition. As long as you cut them into small pieces, to be added to recipes on demand, the texture and flavor is excellent. See how I cut the parsley into bits with scissors?