In a small bowl, combine the salt, pepper, and paprika for the seasoning.
Cut the flounder into half if desired, or keep fillet whole and season on both sides with about 3/4 of the seasoning.
In a frying pan add the butter and flounder. Saute for about 3-4 minutes flipping halfway through cooking. Remove flounder from skillet, cover to keep warm.
In the same skillet, add oil with onion. Sautee for 2 minutes, add the carrot sautee another 2 minutes. Add the pepper and cook for another 3 minutes, stirring as needed.
Add tomatoes, broth, garlic and remaining seasoning. Sautee on medium heat 5 minutes, or until vegetables are tender. Add flounder back, cook until flounder is warm.