1. Place shrimp in a large bowl and sprinkle with the creole seasoning. Set aside.
2. Heat the oil in a heavy-bottomed pot over medium-high heat. Add the onion, green pepper, and celery, season with salt and pepper, and cook over medium heat until the vegetables are softened, stirring often, about 4 minutes. Add the garlic and cook, stirring, a further minute.
3. Stir in the tomatoes, the water, Stevia, tomato paste, and oregano and bring to a boil. Reduce heat to medium-low and simmer for 15 minutes, stirring occasionally.
4. Add the shrimp, stir well, and simmer until just cooked, 3 to 4 minutes. Remove the shrimp with a slotted spoon and transfer to a warm serving bowl.
5. Continue to simmer the sauce until well thickened, 5 to 8 minutes more. Taste for seasoning, pour over the cooked seafood and serve immediately, with a sprinkling of file powder.
M1 Caution Modification: Add a dollop of sour cream to cool the palate.
300 calories per serving