Roast sweet potatoes in a 425 degree oven for 20 minutes (this can be done the day before)
Heat a non-stick skillet over low to medium heat and fry your eggs to your desired doneness
When the eggs are close to done place the sweet potatoes, spinach and tomatoes in the skillet. Place a lid on the skillet and turn off the heat. Leave it for one minute so the spinach can wilt.
Add salt and pepper to taste and serve.