My "recipe":
-approx 5 pounds of ground beaf (as lean as possible, or else you have series boiling fat overflow problems with this quantity of beef)
-approx 5-6 eggs
-approx half a bottle of ketchup
-approx 4 slices of bread ripped to pieces
-an onion
-green pepper
-two or three jalapenos
-more salt, pepper, oregano, chili powder, than you can possibly imagine.
-Any other vegetables you want to throw in.
Cook it at 350ish for an hourish in preferably a pretty good sized container, or else you'll have uncooked meat in the middle. Slice some butter super-thin and place indiscriminately around the top. This will melt and keep the top from burning/getting too crispy.
Cover with more ketchup after baking (alternative: for a "mexican style loaf" use salsa).
Consume.
The greatest part of meatloaf is there really is no need for a specific "recipe." Stay close to the 1-1-1 ratio of eggs to meat to bread, and then add whatever else you want.