Follow these straightforward steps to create your Cajun Shrimp Scampi:

1. Cook Pasta: Boil a large pot of salted water and cook the linguine or spaghetti according to package instructions. Drain and set aside.
2. Sauté Shrimp: In a large skillet, heat olive oil over medium heat. Add the shrimp in a single layer.
3. Season Shrimp: Sprinkle Cajun seasoning and red pepper flakes over the shrimp. Cook for 2-3 minutes until the shrimp turn pink and opaque.
4. Add Garlic: Move shrimp to one side of the skillet. In the empty space, add the minced garlic and cook until fragrant, about 1 minute.
5. Incorporate Butter: Add the butter to the skillet, stirring to combine it with garlic and shrimp.
6. Mix in Lemon Juice: Squeeze the lemon juice into the skillet, mixing well to create the sauce. Season with salt and black pepper to taste.
7. Combine Pasta: Add the cooked pasta to the skillet. Toss everything together to ensure the pasta is coated in the sauce.
8. Garnish: Remove from heat and mix in fresh parsley for a vibrant look.
9. Serve: Plate the dish and, if desired, sprinkle grated Parmesan cheese on top.

These simple steps will yield a delightful Cajun Shrimp Scampi that you and your guests will love.