My stove top DO is a Lodge 5qt. It is not a camp oven which has legs and a flanged lid. Although you could put your camp oven in your home oven; the legs slip between the wire rack. If you check out the website, you can see that the author uses a cast iron casserole dish. Im not sure of what size they use, but I might get a chance to see it in person later this summer. HTH
BTW, I like your Alamo pic, I used to live in SA as a kid.