I used to work in a little muffin/bagel shop and this was my absolute favorite thing we sold there. I've slightly tweaked it to my tastes and you're welcome to do the same. My personal favorite is to use Tomato+Basil bagels with this.
Also, this is one of the 'chunky' versions of the recipe. If you don't like as much tomato or pepper in yours, don't add it. And if you like your peppers a little softer, precook them a bit before adding in the eggs. Pretty simple.