Solarpunk technology

There are some interesting oven designs that use rooftop solar collectors (mirrored troughs with a tube of transfer fluid running through them) connected to normal-ish form factors ovens downstairs. It's basically the same setup for solar steam generators (if you run a business that uses a lot of steam). The only problem is it's a direct use of the heat without much storage (from what I remember) so you can't really start baking before sunup.

https://www.euronews.com/green/2023/04/23/aggressive-tiger-mosquitoes-are-spreading-through-europe-how-can-we-protect-ourselves

There are also some cool designs for direct solar that point a reflector dish into a hole in a wall (the inside of the hole is the inside of an oven in the kitchen). Tamara solar kitchen has one but there are lots of similar versions.