In a small saucepan, bring the water and sea salt to a rolling boil.
Slowly whisk in the stone-ground grits, then reduce the heat to low and cover the pot.
Simmer the grits for 15-20 minutes, stirring occasionally to ensure a smooth, creamy texture.
Once the grits are tender, stir in the ghee, remove from heat, and keep covered.
While the grits cook, pat the shrimp dry and toss them in a small bowl with the Cajun seasoning and black pepper.
Heat the olive oil in a large skillet over medium-high heat.
Add the diced onion and red bell pepper to the skillet, sautéing for 3-4 minutes until the vegetables are slightly softened.
Stir in the minced garlic and add the seasoned shrimp to the pan.
Cook the shrimp for 2-3 minutes per side until they are pink, opaque, and slightly curled.
Divide the warm grits into a serving bowl and top with the sautéed shrimp and pepper mixture.
Garnish with freshly chopped parsley and serve immediately.