Heat a medium sized skillet over medium heat. Spray with cooking spray. Saute vegetables (except tomatoes) for approximately 5 minutes. Remove from skillet, set aside. Clean off skillet.
Reheat skillet. Whisk together eggs. Spray skillet with cooking spray, add eggs. Cook until no longer runny, and then add back the veggies, including the tomatoes, to the skillet, toss together for 1-2 minutes with the eggs. Remove from heat.