My ‘60s Alaskan has a stove but no oven. I’ve found my Coleman camp oven fits over the rear stove burner great and will heat up to 425 degrees quickly with the burner knob set at about 11:30. The stove folds flat for compact storage. Lots of YouTube reviews of this oven. A six cup muffin pan fits just right, and will accommodate up to a 10” pizza.
https://www.coleman..../COL_2000016462