Fill a large pot with water and kosher salt, allowing it to come to a boil. Cook macaroni noodles according to the instructions on the box; cook until al dente and drain well.
Add macaroni back to the pot over medium heat. Add melted butter and Tony Chachere's, stirring until the noodles are fully coated. Add stewed tomatoes, petite diced tomatoes, and sugar. Stir.
Season to taste with kosher salt, black pepper, onion powder, garlic powder, and additional Tony Chachere's. Stir in seasonings, reduce heat to low, and cook for 5 minutes. Remove from heat and enjoy!
Notes
Adding sugar to this recipe seems odd, but is necessary - it won't make the macaroni and tomatoes sweet, but it will cut the acidity of the tomatoes.
If you do not have Tony Chachere's, any cajun/creole seasoning will work.