This is a good way to use up your leftover taco meat. This is the recipe I use. Make sure that if you want gluten-free or soy-free to check the labels carefully before buying any taco seasoning in the store.
Heat small skillet and add 1/2 T. butter. While that is heating, beat 2 eggs with heavy cream and salt & pepper. When pan is heated, add egg mixture. When omelette edges start to set up, lift edge with spatula while tipping pan so raw egg goes underneath. Continue going around the pan, lifting and tipping, until eggs are cooked through. Sprinkle some shredded cheese and taco meat on one side of cooked eggs. Fold edge without toppings over and carefully slide out of skillet onto serving dish. Garnish as desired.