Place tempeh (broken into small bite-sized pieces), tomato paste, and liquid aminos in a bowl. Allow to sit or marinade for at least 1/2 hour or more, the longer the better. On medium heat in a skillet, add oil. Once the oil is hot, place marinated tempeh. Allow the tempeh to cook for about 5-10 minutes, until there are charred pieces from the tomato sauce and chipotle peppers. Add onions, garlic, frozen corn, and peppers, and allow to cook for 3-5 minutes. Add water, taco seasoning, and black pepper. Cook until the water cooks out and the sauce thickens. Stir to combine all the ingredients. Garnish with cilantro.