Follow these straightforward steps to create Spicy Southern Shrimp and Grits:

1. Prepare the Grits: In a saucepan, bring water or chicken broth to a boil. Add salt and gradually whisk in cornmeal, reducing heat to low. Stir continuously until thickened, about 5-7 minutes.
2. Add Cheese: Remove the grits from heat and stir in the shredded cheddar cheese until melted and well combined. Cover and set aside.
3. Cook the Bacon: In a large skillet, cook the chopped bacon over medium heat until crispy. Remove the bacon and drain on paper towels, leaving the drippings in the skillet.
4. Sauté Vegetables: In the same skillet with the bacon drippings, add the diced onion and bell pepper. Sauté until softened, about 3-4 minutes. Add the minced garlic and cook for 1 minute more.
5. Season the Shrimp: Toss the shrimp in Cajun seasoning and cayenne pepper. Add shrimp to the skillet and stir-fry until they turn pink and opaque, about 3-4 minutes.
6. Add Flavors: Drizzle lemon juice over the shrimp and stir to combine. Let cook for an additional minute.
7. Assemble the Dish: To serve, spoon the creamy cheese grits into a bowl, top with the sautéed shrimp and vegetables, and sprinkle with crispy bacon.
8. Garnish: Finish with sliced green onions and fresh parsley for a pop of color and flavor.

These instructions will guide you to prepare this comforting Southern favorite effortlessly.