It takes a lot of power cook food. Even if you are using a microwave or induction burner. Just start looking at the power consumption figures of microwaves. they start at 1000 watts.

Maybe consider a tiny marine wood stove instead.
https://www.practical-sailor.com/belowdecks-amenities/galley/navigator-wood-stoves-provide-classic-heating-and-cooking-onboard/

Back in the day, my grand parents cooked with a wood stove that also heated the house.

In the summer they would put two poles under the stove and carry it out to the back porch to use it in the summer kitchen on the back porch.

Also depending on your living situation. there is also the rocket stove.

https://fireandsaw.com/what-is-a-rocket-stove/

There also are the more traditional wood stoves that my grand parents used they are still made today.
https://www.lehmans.com/category/ranges

Edit: There are also masonry cook stoves.
https://insteading.com/blog/masonry-cook-stoves/