No Washing Up!

[Greynomad]

We buy the Bunnings (own-brand or other brands) aluminium BBQ drip-trays in packs of 10.
They are the perfect size for two serves of a meal, and when finished, they go into the next Recycling bin we see (in desperation, the normal garbage bin).
Being low-profile, they freeze easily, and being square, you can fit them more easily into freezer & oven. They are the right height to stack 5-up into our freezer (with foil, or the lids supplied with some other brands), and if you use the lids, you can write on them with a texta so you know what's on tonight's menu! If we cover them with foil, we use adhesive mailing labels.
Oven reheating requires replacement of the foiled-cardboard lid with a piece of foil for a cover. Unless you like the taste of burnt cardboard...

[TigerMK1]

We save the containers the chinese meals come in. They cost nothing and come in round/square. Fits a single meal and can see what it is. A texta helps with id.

[Greynomad]

Tiger,
We do the same - when we have Chinese take-away...
However, reheating in the oven gives the meal a plasticky taste... and it's messy to serve.

[TigerMK1]

Tiger,
We do the same - when we have Chinese take-away...
However, reheating in the oven gives the meal a plasticky taste... and it's messy to serve.

We use the microwave

[T1 Terry]

We've gone the other way, every thing left over goes in those glass Pyrex dishes, we avoid the microwave after that email with the water boiled in the microwave having all it's good stuff destroyed and killing the plants thing, so it gets emptied in to stainless saucepan, no more aluminium one after the Alzheimer’s findings, or a cast iron frypan. The washing up gets a bit more but the food tastes so much better now, just need to eat less of it so I stop changing shape