Let’s get cooking! Here are the steps to make your Spicy Cajun Shrimp Alfredo:

1. Start by cooking the fettuccine according to the package instructions. Drain and set aside, reserving about a cup of pasta water.
2. In a large skillet, heat the olive oil over medium-high heat. Toss the shrimp with Cajun seasoning until evenly coated, then add them to the skillet.
3. Sauté the shrimp for about 2-3 minutes on each side, or until they turn pink and opaque. Remove the shrimp from the skillet and set aside.
4. In the same skillet, add the minced garlic and sauté until fragrant, about 30 seconds.
5. Pour in the heavy cream and bring it to a gentle simmer. Stir in the Parmesan cheese until melted and the sauce thickens slightly, about 3-4 minutes.
6. Return the cooked shrimp to the skillet, and add the lemon juice. Stir everything together, allowing the flavors to meld.
7. Add the cooked pasta to the skillet, tossing to coat with the sauce. Use the reserved pasta water to adjust the sauce consistency, if needed.
8. Season with salt and pepper to taste, and garnish with chopped parsley before serving.

Cooking this dish always brings me back to those bustling kitchen moments with my grandmother, where a pinch of this and a dash of that would transform simple ingredients into something extraordinary.