Mirepoix makes a quick substitute for ground beef when you are wanting tacos. Depending how many people you're feeding, you'll want one or two bags of Mirepoix.
Throw your Mirepoix into a skillet and “brown” with taco seasoning or cumin and garlic powder.
Add black beans, corn, and salsa. That's it.
Super yummy and healthy!
Of course, you can top with cheese and sour cream. However, your Mirepoix will make your tacos so flavorful, you don't need the extras.