*This diverges from Cuisine at Home's directions, but is much simpler. It takes a bit of patience, but spread the masa with a silicone spatula, as it cools you will be able to form it up the sides of the skillet in an even layer on the sides and the bottom.
**By using a very lean ground beef, I can add all the ingredients at once, since there will be very little, if any, remaining fat. If you use a more fatty blend, brown your ground beef first, drain all but 1 tablespoon of the fat, saute the onion for about a minute, then add back in the browned beef and the other ingredients.
***I have never understood why, when giving instructions for puréeing in a food processor, instructions have you chop things first. Just throw the whole cilantro leaves and the whole garlic clove in there and let the machine do the work for you.