Cook the sorghum grain using 2 cups of the water in a pressure cooker (@ High Pressure for 1 hour). While the sorghum is cooking, prepare the other ingredients. To prepare the salsa, boil all the salsa ingredients except for the cilantro and sunflower oil in water for 10 minutes. Then remove water and place the cooked ingredients, cilantro, and sunflower oil in a blender; Puree until smooth and set aside. Using a medium-sized pot, cook (on medium heat) the beef for about 15 minutes and add the onion, tomato (1/2 cup), cilantro, garlic salt, and salt. Cook for additional 10 minutes stirring occasionally. Then add the cooked sorghum into the pot and mix until well combined. Arrange the sorghum-beef mixture, lettuce, tomato (1/2 cup), avocado, and salsa on a serving plate.