This sauce is also great with grilled tortillas filled with slices of Jack cheese, a few strips of green chiles, and a few epazote leaves (about 2 per serving). Heat griddle or skillet. Put the filling on one corn tortilla, top with a second tortilla, and press down on the "package" with something heavy while grilling on top of the stove. To serve, set the cheese-filled tortillas flat on the plate, smother with this sauce, and eat with a fork. A great substitute for grilled cheese sandwiches!
Source: Mexican Family Cooking