In a skillet melt the butter over medium heat and add the potatoes. Cook eggs for 5 to 10 minutes or until they are starting to soften slightly.
Add the peppers and onion and continue to cook for another 5 to 10 minutes Add the sausage and tomatoes and continue to cook until the vegetables are tender and the sausage is heated through. Season the mixture with the celery salt and pepper
Fry the eggs in another skillet and set on top of the sausage and veggies.
Notes
I have made the skillet with cooking the eggs with the vegetables, but the vegetables and sausage would start to burn since it takes time for the eggs to cook.