Heat olive oil over medium high heat in a medium sauté pan. Add peppers, tomatoes, and shallot and sauté for 3-4 minutes or until fragrant. Set aside and allow the pan to cool.
Pour egg whites over the sautéed veggies in the cooled pan. Cover and turn heat to just above medium.
Cook eggs until they no longer jiggle when you touch the pan and are cooked through, about 10 minutes. Vent the lid if the top of the egg whites begin to bubble.