In a large nonstick skillet, cook the ground beef over med-high, stirring and crumbling the meat as it cooks, until most of the pinkness is gone, about 5-7 minutes. Drain away any excess grease, if necessary. Add the chili powder, 1 tablespoon cumin, paprika, coriander, salt, cayenne and water. Stir to mix well and let simmer for about 5 minutes while mixing the sauce.

In a medium bowl, stir together the tomato sauce, garlic, 2 teaspoons cumin and chipotle chili powder. Stir the sauce into the taco meat and bring to a simmer. Let simmer, stirring occasionally, while getting your toppings ready, about 5-7 minutes.

To serve: layer tortilla chips in a nearly single layer on each plate, overlapping slightly. Sprinkle it with cheese and top with some of the meat mixtures. Repeat with another layer of chips, cheese, and meat. Top with your favorite toppings.