Beef liver I do not care for it. Maybe I never had it cooked properly. I however love liver from a deer. If someone gets a deer supper is liver and onions!!
So; you are elk hunting in the mountains and you've scored. After you finished field dressing, washed off the blood smell, and changed clothes, you build a hot, hot campfire and let it burn down to deep coals. Take a cast iron skillet and drop in just enough vegetable to coat the bottom and let it start to warm on the edge of the coals.
Next, take the elk liver you saved while field dressing and skin the membrane off, cutting around the gland/duct freely and deeply to avoid spilling bile into the liver itself. Prepare flour, salt, and ground black pepper and spread it on a cooking sheet. Slice the liver into thin straps so that none is more than 1 inch thick and two inches wide. Roll the slices in the flour mix, then place them in the warmed skillet - move it into the coals for higher heat. Fry the slices until very light brown on all sides.
Next, take pre-made green chile stew made with green chiles, fragmented ground beef or pork, diced potatoes, onion, garlic, and tomatillas. Generously ladle the stew over all of the liver slices, then cover the skillet with the cast iron lid and move the skillet to the edge of the coals. In 5 or 10 minutes, uncover the liver and serve.
Don't be shocked if hunters you never saw come streaming out of the woods, drawn by the aroma, looking sad and hungry.