Thanks Rich. I couldn't have accomplished this without the help of your investigative research.
Tim, I've been reading up on line for recipe ideas but it seems they are predominantly about turkey. I've learned that these roasters tend to steam more than roast, and that turkey will not brown so it was recommended more than once that the turkey be removed toward the end and placed into a regular oven to brown. Yeah, no. I'll stick with a conventional oven for that.
I noticed that on some makes the vents in the lid are controlled by a single knob with a dial marked "Pre Heat," "Bake" and "Roast" and I presume those translate into "closed," "partially open" and "fully open." That's good information to reduce or increase the steaming effects when desired. I also read that for the pre-heating period (usually 20 minutes or so), the temperature should be set for 25 degrees higher than the recipe calls for since as soon as the lid is removed to place the food in the well, a lot of heat will be lost that will have to be recovered. Another good rule of thumb.
I think this will be great for St. Patrick's Day dinner. I don't have a pot large enough to accommodate the potatoes and the cabbage, and I don't like cooking them separately from the beef. There might be something else to cook up before then, but the way time flies anymore, March 17 is right around the corner.