I attached a photo of my version. I added sauteed peppers and onions to increase the fiber and antioxidants. I used organic canned beans that are lower in sodium which reduced the sodium content. I also make my own salsa from low salt tomato products. I omitted the cheese--the peppers and onions made up for the reduction in protein. My philosophy about cheese, is if you can't taste it, leave it out. Rather than use two egg whites, I think I would enhance the protein and nutritional value of this dish by using drained and pressed crumbled extra firm tofu.
High-Protein Breakfast Tacos
From EatingWell: May/June 2014
In this high-protein breakfast taco recipe, black beans, eggs and cheese are folded into corn tortillas and topped with your favorite salsa.