I'm using the foil pans. Less cleanup afterwards, since I can recycle them. You can also get cardboard ones that are compostable. I wouldn't freeze my pyrex dishes. They'd never survive. And I got rid of everything else years ago.
As for the oven - if you use the smaller foil pans and have a toaster oven, you can avoid heating up the whole kitchen. For us though, we don't have a microwave, so without a toaster oven (which we don't have room for, as much as I may want one), any cooking is heat producing. Mostly I try to use the oven once every few days, and eat cold/leftovers in between times.
We live in a small apartment, so it heats the whole house. :( Plus, hot food just doesn't sound appetizing right now. I'm all about fresh fruits/veggies, sandwiches, pasta salads, etc. I'll probably get some premade stuff that DD can make herself, just in case there's a time where we're here alone.
we don't have a microwave and I almost bought one. I love frozen bean, rice and cheese burritos but making them in the oven is silly. It takes too long and that is something I like to eat when I am starving! I guess we will just keep some beans in the fridge and make burritos that way...
I'd like to try the cardboard ones! Sounds cool. Yeah, glass going from freezer to oven sounds explosive!
Do you make them yourself and freeze them? Could I do something like that and reheat in the microwave?
I'm doing foil pans! I think it will mostly involved baked things or things that I don't want to cook full time in the oven in late May, so I can let it thaw and then just reheat (rather than cooking raw food from frozen).
I'm liking a lot of the recipes I'm seeing for freezer crockpot meals. Assemble the crockpot dish in a ziploc bag, label with any extras you can't freeze (sour cream, usually), and then on cook day you just dump it in the crock pot and voila.
That might work for us too. Links to recipes? :)