This quick dinner comes together in under 30 minutes and features bold flavors. It combines spicy seasoned shrimp with a rich, velvety cream sauce and hearty pasta.

List of ingredients
- 8 oz penne pasta – provides a sturdy base for the heavy sauce.
- 1 lb large shrimp (peeled and deveined) – use fresh or thawed frozen shrimp for the best texture.
- 1 Tbsp olive oil – used for searing the shrimp to prevent sticking.
- 2 Tbsp cajun seasoning (divided) – adjust the amount based on the saltiness of your specific brand.
- 2 Tbsp unsalted butter – creates a rich base for the aromatics.
- 2 garlic cloves (minced) – adds a sharp, savory depth to the sauce.
- 1/2 cup diced tomatoes – adds a slight acidity to balance the cream.
- 1 1/2 cups heavy whipping cream – provides the primary thickness and creaminess.
- 1/2 cup grated parmesan cheese (plus more to serve) – helps thicken the sauce and adds saltiness.
- 2 Tbsp parsley to garnish (optional) – adds a fresh pop of color and flavor.
step-by-step instructions
- Cook the pasta: Boil a pot of salted water and cook the penne until al dente according to the package directions. Reserve a small amount of the starchy pasta water before draining and cover the noodles to keep them warm.
- Sear the shrimp: Coat the raw shrimp with 1 tablespoon of the cajun seasoning. Heat olive oil in a deep skillet over medium heat, add the shrimp in a single layer, and sauté for 1-2 minutes per side until opaque. Remove the shrimp from the pan immediately and cover to keep warm.
- Sauté the aromatics: In the same skillet, melt the unsalted butter and sauté the minced garlic for about 30 seconds until fragrant. Stir in the diced tomatoes and cook for an additional 2-3 minutes.
- Prepare the cream sauce: Pour in the heavy whipping cream, the remaining 1 tablespoon of cajun seasoning, and the grated parmesan cheese. Bring the mixture to a simmer, then reduce to medium-low heat and cook for 2-3 minutes until the sauce thickens.
- Combine and finish: Add the cooked shrimp and pasta back into the skillet. Stir until everything is well coated and heated through, adding a splash of reserved pasta water if the sauce is too thick. Garnish with extra parmesan and chopped parsley before serving.
Optimizing the Cooking Process
Avoid Overcooking the Shrimp
Shrimp cook extremely quickly and can become rubbery if left in the pan too long. Remove them from the heat the moment they turn pink and opaque. Keeping them separate until the final step ensures they maintain a tender, juicy texture.
Control the Spice Level
Cajun seasonings vary significantly between brands in terms of salt and heat. Taste your sauce after the first tablespoon of seasoning; if it is not spicy enough, add a pinch of red pepper flakes. If the seasoning is very salty, reduce the amount and add more black pepper for heat.
Use the Pasta Water Technique
The reserved pasta water contains starch that acts as an emulsifier. If your sauce appears too thick or separates, a tablespoon of this water will help the sauce cling better to the noodles. This creates a professional, glossy finish to the dish.
Ingredient Substitutions and Alternatives
Alternative Pasta Shapes
While penne is recommended for its ability to hold sauce, other tubular pastas work well. Rigatoni, ziti, or mostaccioli are excellent choices because their hollow centers trap the creamy sauce. Avoid using very thin pastas like angel hair, as they may break under the weight of the shrimp.
Substituting the Cream Base
If you do not have heavy whipping cream, you can use half-and-half, though you will need to simmer the sauce longer to reach the desired thickness. For an even richer sauce, stir in a tablespoon of mascarpone or cream cheese. Avoid using milk alone as it will not thicken sufficiently.
Adding Fresh Vegetables
To increase the nutritional value, you can add bell peppers and onions to the skillet. Sauté them with the garlic before adding the tomatoes. Other compatible additions include asparagus tips, frozen peas, or sautéed mushrooms, which complement the Cajun flavors.
Serving and Pairing Suggestions
Fresh Salad Pairings
A crisp Caesar salad is a traditional accompaniment that provides a cool contrast to the spicy pasta. Alternatively, a cucumber and tomato salad with a light vinaigrette helps cut through the richness of the cream sauce. A simple arugula salad with lemon juice is also a great option.
Bread Accompaniments
Garlic bread is the ideal side for soaking up the leftover sauce from the plate. You can use a toasted baguette with butter and garlic powder or a cheesy garlic loaf. Focaccia bread also works well due to its airy texture and olive oil base.
Vegetable Side Dishes
Roasted cauliflower or grilled zucchini provide a healthy balance to this hearty main course. Corn on the cob, seasoned with butter and paprika, complements the American-Cajun flavor profile. Steamed broccoli is another simple side that pairs well with the creamy sauce.
Storage and Reheating Advice
Refrigeration Guidelines
Store leftovers in an airtight container in the refrigerator for up to three to four days. To prevent the pasta from absorbing all the sauce, you may want to store the pasta and the sauce in separate containers if you plan to keep them for more than two days.
Best Reheating Methods
Avoid reheating the pasta in the microwave on high heat, as this can make the shrimp rubbery and the sauce split. Instead, warm the pasta in a skillet over low heat. Add a splash of milk or water to loosen the sauce and return it to its original creamy consistency.
Freezing Considerations
This dish is not recommended for freezing due to the high cream and cheese content. Dairy-based sauces often separate or become grainy when frozen and thawed. For the best quality, consume the recipe within the recommended refrigeration window.
Troubleshooting Common Issues
Fixing a Runny Sauce
If the sauce remains too thin after simmering, add an extra tablespoon of grated parmesan cheese. Ensure you are using heavy whipping cream rather than light cream or milk, as the higher fat content is necessary for thickening. Simmering on low heat for an extra minute can also help.
Correcting an Over-Salted Sauce
Cajun seasonings are often high in sodium. If the sauce tastes too salty, stir in a small amount of unsalted butter or a squeeze of fresh lemon juice. The acidity of the lemon can help mask excess salt and brighten the overall flavor of the dish.
Frequently Asked Questions
Can I use pre-cooked shrimp?
It is not recommended to use pre-cooked shrimp because they can become tough and rubbery when heated a second time. Cooking raw shrimp in the pan also allows the shrimp juices to flavor the sauce, which improves the overall taste of the meal.
What is the best type of Cajun seasoning?
Any store-bought Cajun seasoning will work, but check the label for salt content. Some brands are mild, while others are very spicy. Start with a smaller amount and adjust to your preference during the simmering process.
Can I make this without heavy cream?
You can substitute heavy cream with a mixture of coconut cream and a pinch of cornstarch for a non-dairy alternative. However, the flavor profile will shift slightly. For a traditional taste, heavy whipping cream is the most effective ingredient for the desired texture.
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Creamy Cajun Shrimp Pasta
- Total Time: 25 minutes
- Yield: 6 servings 1x
- Diet: General
Description
Cajun Shrimp Pasta recipe that makes for the BEST pasta dinner that is ready in under 30 minutes! Buttery cajun shrimp in a creamy cajun sauce mixed with pasta. An easy pasta dish packed with so much flavor!
Ingredients
- 8 oz penne pasta
- 1 lb large shrimp, peeled and deveined
- 1 Tbsp olive oil
- 2 Tbsp cajun seasoning
- 2 Tbsp unsalted butter
- 2 garlic cloves, minced
- 1/2 cup diced tomatoes
- 1 1/2 cups heavy whipping cream
- 1/2 cup grated parmesan cheese
- 2 Tbsp parsley, optional
Instructions
- Step 1: Cook the penne pasta in a pot of salted water until al dente according to package instructions. Keep some of the pasta water for the sauce then drain the pasta and cover to keep warm.
- Step 2: Coat the shrimp with 1 Tbsp of the cajun seasoning. In a deep skillet, heat 1 Tbsp oil over medium heat. Once hot, add the seasoned shrimp in a single layer and saute for about 1-2 minutes per side, or until the shrimp is no longer translucent, remove from skillet and cover to keep warm.
- Step 3: In the same skillet, melt 2 Tbsp butter with the minced garlic and cook 30 seconds until fragrant. Add in the diced tomatoes and saute for about 2-3 minutes.
- Step 4: Pour in the heavy whipping cream, remaining 1 Tbsp cajun seasoning and grated parmesan cheese. Bring to a simmer then reduce to medium/low heat and continue 2-3 minutes or until the sauce thickens.
- Step 5: Add the shrimp and pasta back into the skillet and stir until the noodles are coated in sauce and everything is heated through. If needed, add a splash of the reserved pasta water to thin the sauce. To serve, garnish with more parmesan and chopped parsley, if desired.
Notes
Different brands of cajun seasoning have varying amounts of salt and spiciness. If your seasoning is saltier, start with half of the seasoning and add more to taste. You can substitute penne for rigatoni, ziti, mostaccioli, or elbow pasta, and add vegetables like onion, bell peppers, asparagus, or mushrooms.
- Prep Time: 5 minutes
- Cook Time: 20 minutes
- Category: Main Course
- Method: Stovetop
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 523 kcal
- Sugar: 2 g
- Sodium: 745 mg
- Fat: 32 g
- Saturated Fat: 18 g
- Unsaturated Fat: 13 g
- Trans Fat: 1 g
- Carbohydrates: 33 g
- Fiber: 2 g
- Protein: 25 g
- Cholesterol: 289 mg
Keywords: cajun shrimp pasta, 30-Minute Meals, shrimp, cajun spice




