This 4-ingredient creamy Cajun shrimp pasta is the kind of weeknight dinner that feels a little indulgent without asking much of the cook. Cajun seasoning brings bold flavor fast, while cream and pasta water create a silky sauce that clings to every piece of pasta and shrimp. It is a practical shortcut recipe with roots in the Louisiana-inspired flavor profile so many home cooks love, pared down for busy evenings when dinner needs to happen quickly.
Serve this pasta with a simple green salad, sliced tomatoes, or garlicky green beans to balance the richness. A piece of warm crusty bread is useful for catching the extra sauce, and if you want something cool alongside the spice, sparkling water with lemon or a glass of iced tea fits especially well.
4-Ingredient Creamy Cajun Shrimp Pasta
Servings: 4
Ingredients
12 ounces penne pasta
1 pound large shrimp, peeled and deveined
2 cups heavy cream
2 to 3 tablespoons Cajun seasoning
Directions
1. Bring a large pot of salted water to a boil and cook the penne until just al dente. Reserve about 1 cup of pasta water, then drain the pasta.
2. While the pasta cooks, toss the shrimp with the Cajun seasoning until evenly coated.
3. In a large skillet or Dutch oven over medium heat, cook the seasoned shrimp for 1 to 2 minutes per side, just until pink and curled. Remove to a plate if needed to prevent overcooking.
4. Lower the heat and pour the heavy cream into the same pan. Stir and let it simmer gently for 2 to 3 minutes so the cream picks up the Cajun seasoning and starts to thicken.
5. Add the drained pasta and cooked shrimp to the pan. Toss until everything is coated, adding a splash or two of reserved pasta water as needed to loosen the sauce and help it cling to the penne.
6. Taste and adjust with a little more Cajun seasoning if you want extra heat, then serve immediately while hot and creamy.
Variations & Tips
Adjust the heat: Cajun seasoning blends vary a lot in salt and spice level, so start with 2 tablespoons and add more at the end if needed. This is the easiest way to keep the sauce balanced instead of overly salty or sharp.
Use a different pasta shape: Penne is great because the sauce settles inside the tubes, but rigatoni, fusilli, or fettuccine also work well. Choose a shape with some texture so the cream sauce has plenty to hold onto.
Do not overcook the shrimp: Shrimp cook very quickly and can turn rubbery if left in the pan too long. As soon as they are pink and curled, pull them from the heat and return them only long enough to warm through in the sauce.
Stretch it with vegetables: If you want to make the meal go further without changing its character too much, stir in a handful of baby spinach or some sautéed bell peppers. They fit naturally with the Cajun flavors and add color.