Where to start --- Dutch oven cooking is awesome! If you use BBQ briquets -- each briquet is equal to about 15 to 20 degrees of heat -- for baking and cooking you need heat on the top and bottom (that is why the lids are flat with ridges around them). The 'ovens' have legs so they may sit on top of coals/briquets. I have a small 'oven' with a domed lid and no legs that I use in my oven at home. Roasts come out fork tender in 'ovens' -- just remember to watch the fluid level and keep topping it up so the roast does not burn. Stew, chili, & soup are great in 'ovens' also. You can stack 'ovens' for cooking multiple items (coals below 'oven', coals on 'oven' lid, next 'oven', coals on lid). We have an old fry pan to sit the 'oven' in and contain the coals. If using briquets, a chimney for lighting coals is handy. Welders gloves, long tongs, and a lid lifter are very useful. The lid can be flipped over and used as a griddle to make pancake, quesadillas, grilled sandwhiches. Cleaning is simple -- scrap excess food off, use minimal soap and water, wipe dry, season with a coating of oil so it is ready to go next time.
-a fav at Scout Camps is packaged scalloped potatoes, or potatoes au gratin and cubed ham -- mix all together and bake till tatoes are cooked.
-have also seen Venturers (14 to 18 yr olds, level above Scouts) cook a chicken in a pop (seems some will do anything with a can of pop!!! lol -- guess other canned beverages could be used as well -- also could substitue grouse, or rabbit for chicken).
-a couple of years ago Cowichan Bowmen fed 76+ people with dutch oven roast beef dinner at the VI 3D shoot!!! All beef was cooked in a large BBQ with dutch ovens!
-try any of your fav recipes -- also google dutch oven cooking to confirm the heat amount for briquets and for pointers on what to do how! Once your 'ovens' are seasoned -- you will love what you can produce in them!
-ooops just about forgot about seasoning new 'ovens' --seems they are coated with a wax-like substance -- so they need to be scrubbed with hot water and soap, then place in a cold oven --put the pot upside down and prop the lid beside it -- put a pan underneath to catch anything that the scrubbing missed. Bring the oven up to 350 to 400 F and then turn oven off and let cool down. When cool wiped all surface with a light coating of vegetable oil (don't use animal based fats as they will go rancid!) Depending how long between uses, you may have to heat your 'oven' to remove old oil and reseason before use.
~g'luck and enjoy, echo