Cajun Shrimp Protein Pasta
By Better Plate RecipesCajun Shrimp Protein Pasta combines high-protein penne or rotini with Cajun-seasoned shrimp, red bell pepper, garlic, Parmesan, half-and-half, broth, and parsley in a gently spicy sauce.
Why You’ll Love This Recipe
You will love Cajun Shrimp Protein Pasta because it gives you comfort and balance in the same bowl. Cajun seasoning gives the shrimp bold flavor in minutes, and high-protein pasta makes the bowl more filling. The flavors are familiar enough for a weeknight, but the little details make it feel more special than plain pasta. The shrimp stay juicy, the bell pepper keeps a little crunch, and the parmesan sauce turns creamy without feeling too heavy. It is also practical: shrimp cooks fast, so dinner can be ready quickly once everything is prepped. The instructions walk you through the heat level, timing, and visual cues, so you are not guessing when the protein is cooked or when the sauce is ready. It is the kind of recipe that helps a beginner feel confident while still giving an experienced cook something satisfying to make.
What Makes This Recipe Work
Cajun Shrimp Protein Pasta works because the bowl has balance instead of just pasta and sauce. The hearty base (Cajun shrimp and high-protein pasta) gives the meal real staying power. The texture piece (red bell pepper and parsley) keeps each bite from feeling one-note, whether it adds freshness, color, tenderness, or a little bite. The sauce layer (Chicken broth, half-and-half, parmesan, garlic, Cajun seasoning, and pasta water) ties everything together and gives the pasta something flavorful to hold onto. The finish (optional red pepper flakes) adds the bright, salty, creamy, or herby note that makes the dish taste complete. The trick is not rushing the skillet work. Cooking the main ingredients carefully, warming the aromatics, and loosening the sauce with pasta water all build flavor in small layers. Once you understand those little steps, the recipe feels easy instead of fussy, and the final bowl tastes more intentional than the short cook time suggests.
Ingredient Notes & Easy Swaps
High-protein penne or rotini: Legume- or wheat-protein pasta keeps the protein high and holds the creamy sauce in its ridges. Follow the specific package time and start tasting about 2 minutes early, because brands and protein bases cook differently. Regular penne or rotini also works, but the protein number will drop.
Gluten-free pasta: Use a corn-and-rice or chickpea gluten-free penne or rotini and cook it at the low end of the package time. Also check that the Cajun seasoning is labeled gluten-free and suitable for your cross-contact needs.
Dairy-free swap: This sauce has two dairy ingredients, so replace both: use 3/4 cup unsweetened plain oat or cashew cream in place of the half-and-half and 1/2 cup dairy-free parmesan-style shreds or 3 tablespoons nutritional yeast in place of the Parmesan. Dairy-free creams thicken less, so simmer an extra minute and use less pasta water.
Cajun seasoning: Brands differ widely in salt and heat, so taste a pinch before measuring and hold back some of the added salt if yours is salty. A salt-free Cajun blend gives you the most control, and you can then season the sauce to taste at the end.
Red bell pepper: Bell pepper adds sweetness and color that balances the Cajun spice. Cook it just 2 minutes so it keeps a little bite. Yellow or orange bell pepper works the same way; green is sharper and less sweet.
Optional red pepper flakes: The 1/2 teaspoon red pepper flakes is genuinely optional and layers extra heat on top of the Cajun blend. Leave it out entirely for a mild, family-friendly version, or stir in a pinch at a time at the end and taste.
Fresh parsley: Parsley brightens the creamy, spicy sauce right at the finish. Sliced green onions give a sharper finish if that is what you have.
Nutrition estimate: Nutrition is an estimate, not a lab measurement. It assumes Barilla Protein+ pasta, peeled and deveined shrimp, standard half-and-half, low-sodium chicken broth, grated Parmesan, the optional red pepper flakes left out because they are nutritionally negligible, and about 10% absorption of the pasta-water salt. Cajun seasoning sodium varies by brand.
Cajun Shrimp Protein Pasta
Description
Cajun Shrimp Protein Pasta combines high-protein penne or rotini with Cajun-seasoned shrimp, red bell pepper, garlic, Parmesan, half-and-half, broth, and parsley in a gently spicy sauce.
Ingredients
- 4 quarts water
- 1 tbsp kosher salt, for pasta water
- 10 oz high-protein penne or rotini
- 1 1/4 lb large shrimp, peeled and deveined (tails off)
- 2 tsp cajun seasoning
- 2 tbsp olive oil, divided
- 4 garlic cloves, minced
- 1 red bell pepper, diced
- 1 cup low-sodium chicken broth
- 3/4 cup half-and-half
- 1/2 cup grated parmesan
- 1/4 cup chopped fresh parsley
- 1/2 tsp red pepper flakes (optional)
- 1/2 tsp sea salt
- 1/2 tsp black pepper
Instructions
- 1Equipment: a large 6-quart pot, a colander, a heatproof measuring cup, a 12-inch skillet, tongs, paper towels, a bowl for the raw shrimp, a clean bowl for the cooked shrimp, a separate clean cutting board and knife for the produce, measuring cups, measuring spoons, an instant-read thermometer, and serving bowls.
- 2Pour 4 quarts water into the large pot and set it over high heat. When it reaches a strong rolling boil, add 1 tbsp kosher salt and stir. Add 10 oz high-protein penne or rotini and stir once right away so it does not clump.
- 3Cook the pasta for the time on the package, stirring once or twice, until tender with a small firm bite in the center. Follow the specific time on your package and start tasting about 2 minutes early, because high-protein brands cook differently. Before draining, scoop out 1 cup cloudy pasta water into a heatproof measuring cup, then drain in the colander and do not rinse.
- 4Dice the red bell pepper and mince the garlic on a separate clean produce board before you touch the shrimp. Lay the 1 1/4 lb shrimp on paper towels and pat both sides dry, then put them in their own bowl and toss with 2 teaspoons Cajun seasoning, 1/4 teaspoon sea salt, and 1/4 teaspoon black pepper. Keep the raw shrimp in its own bowl, away from the cutting board you use for produce, and wash your hands with soap and warm water for 20 seconds after handling it. Wash the bowl, and any tool that touched raw shrimp, in hot soapy water before it touches anything ready to eat. Cajun seasoning brands differ a lot in salt and heat, so taste a pinch of yours first and use less if it is very salty or very spicy.
- 5Heat 1 tablespoon olive oil in the 12-inch skillet over medium-high heat, about 7 out of 10, until the oil looks thin and moves easily around the pan. Add the shrimp in one layer with space between them, cook 1 1/2 minutes, flip with tongs, and cook 1 to 1 1/2 minutes more. They are done when the thickest shrimp reads 145°F on an instant-read thermometer, or, if a thermometer is not practical with small shrimp, when the flesh is firm, pearly, and opaque all the way through with no translucent center. A loose curl is only a secondary hint; a C shape by itself does not prove doneness. Move the cooked shrimp to a clean bowl and return it to the pan only briefly at the end so it does not overcook.
- 6Lower the heat to medium. Add 1 tablespoon olive oil, the 4 minced garlic cloves, and the diced red bell pepper. Cook 2 minutes, stirring often, until you can smell the garlic and the pepper is just slightly softened but still has bite.
- 7Pour in 1 cup low-sodium chicken broth and 3/4 cup half-and-half. Keep the heat at medium-low so the sauce sits at a gentle simmer with only small bubbles around the edge, and never let it boil, which would make the dairy separate. Cook 3 to 4 minutes, stirring often, until the sauce lightly coats the back of a spoon.
- 8Turn the heat to low or off. Stir in 1/2 cup grated Parmesan, 1/4 teaspoon sea salt, and 1/4 teaspoon black pepper until melted and smooth. Add the 1/2 teaspoon red pepper flakes only if you want extra heat; they are optional and the dish is already lightly spicy.
- 9Add the drained pasta and toss, loosening with the reserved pasta water 1 tablespoon at a time until the sauce looks silky and coats every piece. Return the cooked shrimp and gently stir for about 30 seconds, just to warm through. Finish with 1/4 cup chopped parsley and serve immediately.
Tips and Tricks
- 1
Dry the shrimp well: Lay the shrimp on paper towels and press both sides before seasoning. Surface water turns to steam the second the shrimp hit the skillet, which means they poach in their own liquid, refuse to take on color, and toughen while you wait for browning that never comes.
- 2
Check your Cajun seasoning label: Cajun blends vary enormously, from mild and herb-heavy to aggressively salty and hot. Taste a small pinch before you measure. If yours leads with salt or cayenne, start with 1 1/2 teaspoons and skip the extra 1/4 teaspoon sea salt on the shrimp; you can always season the finished sauce.
- 3
Keep the dairy at a gentle simmer: Once the half-and-half goes in, hold the pan at medium-low so you see only small bubbles at the edges. A hard boil makes half-and-half break into grainy curds and a thin, oily-looking sauce that no amount of stirring will bring back together.
- 4
Return the shrimp only at the end: The shrimp are fully cooked when they leave the pan the first time. Fold them back in for about 30 seconds, right before serving, so they warm through in the sauce instead of cooking a second time and turning rubbery.
Nutrition
Serving size: 1 serving (1/4 recipe)
Calories: 555kcal, Protein: 48g, Carbs: 54g, Fat: 19g, Fiber: 6g, Sugar: 6g, Sodium: 1150mg.
Nutrition information is an estimate and may vary based on ingredient brands, product sizes, preparation methods, and substitutions. It is not intended as medical or dietary advice.