Like I mentioned in the video, if you skip the bacon just start with some avocado oil, butter, ghee or lard in the pan and cook the eggs. You can use almost any cheese that you like in place of feta, they are all fine. If you don't like spinach you can use mushrooms, bell peppers or any vegetable really. The idea is to get a good balance of things. You can also use turkey bacon though that won't have any fat so you'll need something to fry it in. You could also use some ground meat as well in the omelet.