Why are drippings from restaraunt ground beef colored orange? I've noticed over the years that whenever I cook ground beef from the grocery store, the drippings in the beef are typically clear in color.

When eating out, if I order a particularly greasy ground beef item, the drippings are typically orange in color.

What accounts for this difference in appearance?
This should depend greatly on what the item is.  Hamburgers generally run clear, possibly slightly bloody if undercooked.  The only example of this I can think of would be the odd orange drippings from "taco meat".  The cause of that is soluble coloring agents or spices in the drippings.