In a small saucepan, bring the chicken broth and sea salt to a boil.
Gradually whisk in the grits, reduce heat to low, cover, and simmer for 15-20 minutes until creamy and tender.
While the grits cook, melt the ghee in a large skillet over medium-high heat.
Add the diced onion, green bell pepper, and celery to the skillet, sautéing until the vegetables are softened.
Stir in the minced garlic and Cajun seasoning, cooking for 1 minute until fragrant.
Add the shrimp to the skillet and cook for 2-3 minutes per side until pink and opaque.
Stir in the lemon juice and black pepper, then remove the skillet from the heat.
Spoon the warm, creamy grits into a bowl and top with the Cajun shrimp and vegetable mixture.
Garnish with freshly chopped parsley before serving.