Don't panic - if I could learn to BBQ, anyone can!
Really, I was scared to death. It was always a "man thing" in my book. But there was no man in the house, and my daughter wanted to have a BBQ! So I womaned up, and figured it out.
The hardest part is getting the coals hot. There are lots of good directions out there about starting the coals, and how to know when they are the right temp. If nothing else, read the back of your charcoal bag!
From there, I suggest grilling either hamburgers or hot dogs like someone else suggested, or going for steaks. Avoid chicken, esp. chicken parts with bones still in. Beef is forgiving if you undercook it or overcook it a bit (may not be done to your likeness but it's usually still edible) - chicken is not! Pork is iffy - if it gets overcooked, it gets too dried out for me, so I wouldn't attempt it the first time out. I'd avoid ribs, because the bones make it harder to judge cooking time, etc. Although if you really,really want ribs, one trick is to parboil them first (at home presumably), then only finish them off on the grill.
If you are concerned about the lack of cover for the grill, just take a box of aluminum foil with you. With that, you can fashion an impromptu cover for the meat if you really need it.
oh....and pretend you are at Fort Wilderness.
OK. For some reason I find this hilarious. They are out in the woods in a cabin "roughing it" and they whip out their iPhone to use an app to tell them how to cook!
I'm not making fun of the poster or the OP. Its just a funny image.
Everyone left off the biggest Oh-oh issue with outdoor built-in grills -- the dirt factor.
Not once in my life have I ever encountered a clean communal grill; you're going to have to clean that sucker before you can use it. You have a couple of choices for that: you can fire-clean it, by building a large wood fire (with actual flames) and burning off the leftover gunk, or by bringing a grill stone and scouring it. The "lid" thing isn't an issue, you just need to turn the food (bring long tongs.)
Also, check the pit for small animal carcasses before you start. (We found a dead skunk in one once.) In winter animals tend to creep in to get warm after the pit has been used, and sometimes they can't get out.
If my 10 year old girl scouts can do it you can!
It is very easy to start a fire in the pit, just make sure you start with smaller dry sticks and paper and slowly add bigger logs when it heats up.
What we like to do is roast hot dogs on a stick the first night since we are usually setting up camp and we put a can of chili in the fire to heat up for chili dogs. The next night we do chicken that has been marinating for the day and cook it on the grate over the fire, while we have our foil packets laying on the coals. In the foil packet we have chopped up potatoes, onions, bacon, salt and pepper, and butter. Very easy! Don't be afraid to get dirty!
For snacks we usually have smores, banana boats, and jiffypop popcorn over the fire. To do the popcorn you have to have a longer stick and bring some wire to attach the popcorn to the stick and just shake when it starts to heat up!
Peel banana down one side and cut a wedge into it. Place marshmallows and chocolate chips into the wedge, and cover with peel and alumumin foil and throw into the coals for a little bit until everything melts.Heidi - what are banana boats?