In a small saucepan, bring 1 cup of water and a pinch of salt to a boil.
Whisk in the grits, reduce heat to low, cover, and simmer for 15-20 minutes until creamy and tender.
While grits cook, toss the shrimp in a bowl with Cajun seasoning, salt, and black pepper until evenly coated.
Heat olive oil in a large skillet over medium-high heat.
Add the diced onion and bell pepper to the skillet, sautéing for 3-4 minutes until softened.
Stir in the minced garlic and cook for 30 seconds until fragrant.
Add the seasoned shrimp to the skillet and cook for 2-3 minutes per side until pink and opaque.
Once the grits are done, remove from heat and stir in the Greek yogurt for a rich, velvety texture.
Portion the creamy grits into a bowl and top with the Cajun shrimp and sautéed vegetable mixture.
Garnish with fresh chopped parsley before serving.