In a medium-sized pot, bring 4 cups of water to a rolling boil. Add 1 teaspoon of salt and gradually whisk in the stone-ground grits. Lower the heat and cook for 20-25 minutes, stirring frequently. Mix in the butter and shredded cheddar cheese until melted and incorporated.
In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add the diced green bell pepper, celery, and onion. Sauté for about 5 minutes until softened. Add minced garlic and sauté for an additional minute.
In a mixing bowl, toss the shrimp with 2 tablespoons of Cajun seasoning. Add the shrimp to the skillet and cook for 3-4 minutes until pink and opaque. Add cherry tomatoes and cook for an additional 2 minutes. Adjust seasoning with salt and pepper as needed.
To plate, spoon portions of the creamy grits onto each dish and top with the Cajun shrimp mixture.
Garnish with sliced scallions and serve immediately.
Notes
Serve immediately for the best flavor and texture.