Heat up some avocado oil in a skillet over medium heat.
Put the beef into the skillet + brown it. When the majority of the beef is done, throw in the beans, corn, green onions, cilantro and leafy greens into the skillet.
Mix and cook everything together. Once the leafy greens are wilted and the beef should be done, mix in all the spices, salt, and pepper. Cook on medium heat for another 3-5 minutes.
Heat up each Siete tortilla on another skillet or just over the gas (if you have a gas stove).
Fill each tortilla with the beef filling and dip in sour cream! Enjoy!