In a large Dutch oven, melt ½ cup butter over medium heat. Add onion, celery, jalapeño, bell peppers, garlic, and grape tomatoes; cook, stirring occasionally, until softened, about 10 minutes.
Add remaining ½ cup butter, and stir until butter is melted. Add diced tomatoes, wine, lemon juice, and tomato paste; stir, and bring to a boil. Add cornstarch mixture, and stir. Add Cajun seasoning, onion powder, and pepper; stir.
Return to a boil, and add shrimp, parsley, and green onion. Simmer until shrimp are cooked through. Season to taste with salt and hot sauce. Remove from heat. Serve over Cheesy Garlic Grits. Garnish with parsley, if desired.
Recipe by Louisiana Cookin' at https://louisianacookin.com/bozzs-shrimp-creole/