Here is a quick recipe that my kids (and my scouts) always went nuts over!
   Pizza Hot Dish
   
  Ingredients:
  2 packages  crescent rolls
  8 ounces  shredded cheddar cheese
  1 jar  pizza sauce
  8 ounces  shredded mozzarella cheese
  1½ pounds  ground beef
   
  
Preparation:
  Brown ground beef, drain.  Line Dutch oven with 1 package of crescent rolls.
  
Spread pizza sauce on dough.  Add browned beef,  the cheeses and use second package of rolls to form a top crust.  Bake 30 minutes at 350 degrees F.
SvilleKid notes:
If crescent rolls are allowed to warm up some, they will be easier to spread.  Bring roll crust up side of oven a couple of inches, and you can bring top layer of rolls down to match.  This will form a solid crust, and make oven easier to clean later.
Spray inside of oven with spray oil before you begin.  Helps a lot.
Use your imagination on fillings.  I include pepperoni, onions, mushrooms, olives........   You get the picture!  But, don't get it more than about 2-3 inches thick if you want the middle done.  I always added one bag of cheese on top of the pizza sauce, then the second bag on top of all the toppings before I put on the top layer of rolls.
I have found that name brand Crescent rolls (Pillsbury) work the best.
6-8 coals under the bottom is PLENTY!  I load the top up with 25-30.  This is a baking dish, with the bottom coals mainly to rise and cook the dough bottom.  More coals on the bottom WILL result in the bottom crust burning.
Incidentally, I have several dutch oven recipe books in .doc format.  Would be happy to email them to those interested.  PM me an email address