In a small saucepan, bring the water and sea salt to a boil.
Whisk in the stone-ground grits, reduce heat to low, cover, and simmer for 15-20 minutes until creamy and tender.
While the grits cook, heat the extra virgin olive oil in a large skillet over medium-high heat.
Add the diced red bell pepper and yellow onion to the skillet, sautéing for 3-4 minutes until softened.
Add the shrimp to the skillet and sprinkle evenly with Cajun seasoning and black pepper.
Sauté the shrimp for 2-3 minutes per side until they are pink, opaque, and slightly charred.
Stir the grass-fed butter into the cooked grits until fully melted and the texture is velvety.
Spoon the creamy grits into a bowl, top with the sautéed shrimp and vegetable mixture, and drizzle with fresh lemon juice.
Garnish with chopped fresh parsley and serve immediately.