This Cajun shrimp and polenta is creamy, buttery, and packed with bold flavor—all ready in about 30 minutes. Juicy shrimp are cooked in Cajun lemon butter and served over rich, cheesy polenta for an easy dinner that feels restaurant-worthy without the extra work.
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This is the kind of dinner that looks like you put in way more effort than you actually did. Creamy, cheesy polenta topped with juicy Cajun shrimp in a buttery lemon sauce—it’s bold, comforting, and ready in about 30 minutes.
It hits that perfect middle ground between weeknight easy and restaurant-level good. No complicated steps, no hard-to-find ingredients—just simple cooking that delivers big flavor. Whether you’re making it for a quick dinner or something a little more special, this one always feels like a win.
Why You'll Love This Shrimp and Polenta
- Big flavor, simple ingredients: Cajun seasoning, butter, garlic, and lemon do all the heavy lifting—nothing complicated, just bold, reliable flavor.
- Creamy polenta every time: Slow, steady cooking creates a smooth, rich base that pairs perfectly with the shrimp.
- Juicy, perfectly cooked shrimp: Quick cooking keeps the shrimp tender and flavorful—no rubbery seafood here.
- Ready in about 30 minutes: A fast, approachable dinner that still feels elevated.
- Weeknight or date night: Easy enough for a regular night, impressive enough to serve to guests.
What You'll Need & Why
- Bacon: Adds a savory, smoky base that builds flavor right from the start.
- Cajun seasoning + Old Bay: Bold, layered seasoning that gives the shrimp that signature kick. Use your favorite Cajun blend and let Old Bay do what it does best.
- Instant polenta, cream, Parmesan, and butter: This is your creamy, cheesy foundation. Rich, smooth, and ready in minutes—no long cooking required.
- Chicken or vegetable stock: Adds depth to the polenta. Use a good-quality stock—you’ll taste the difference.
- Lemon: Brightens everything and balances the richness so the dish never feels heavy.
- Shrimp: Quick-cooking, tender, and perfect for soaking up all that buttery Cajun flavor.
The Recipe Rundown
- Cook the bacon: Crisp the bacon in a skillet, then remove and set aside.
- Cook the shrimp: Season with Cajun seasoning and Old Bay, then cook with the green onions until just done.
- Make the polenta: Whisk the polenta into hot broth, then stir in butter, cream, Parmesan, and lemon.
- Make the sauce: Melt butter in the shrimp skillet with Cajun seasoning and fresh lemon juice.
- Assemble: Spoon the creamy polenta into bowls, add the shrimp, bacon, and green onions, then finish with the Cajun lemon butter.
Swaps & Variations
This shrimp and polenta is flexible—here are a few easy ways to switch it up.
- Protein options: Swap shrimp for scallops, salmon, or chicken. Just adjust the cook time so everything stays tender and fully cooked.
- Polenta alternatives: Instant polenta keeps things quick, but traditional polenta works just as well—just follow package directions. For a lighter option, serve the shrimp over mashed cauliflower and with a simple green salad.
- Add a splash of wine: Deglaze the pan with a little dry white wine before adding the butter and lemon for extra depth.
- Make it milder or spicier: Adjust the Cajun seasoning to taste depending on your heat preference.
Tips For The Best Shrimp and Polenta
A few simple techniques make the difference between good and restaurant-quality.
- Don’t overcook the shrimp: Shrimp cook fast—usually just 1–2 minutes per side. As soon as they turn pink and opaque, they’re done. Overcooking is the fastest way to ruin them.
- Use warm liquid for the polenta: Starting with warm stock helps the polenta cook smoothly and prevents clumping.
- Whisk the polenta as it cooks: Stirring consistently keeps it creamy and prevents lumps from forming.
- Finish the polenta with fat: Butter, cream, and Parmesan aren’t optional—they’re what make the polenta rich, smooth, and worth it.
- Serve immediately: Polenta thickens as it sits. For the best texture, serve right away while it’s creamy and soft.
Shrimp and Polenta Recipe
Equipment
- sautè pan
- large pot
Ingredients
- 4-6 slices bacon, chopped
- 1 lb shrimp, peeled and deveined
- 1 teaspoon cajun seasoning recipe below or use your favorite
- 1 teaspoon Old Bay
- 1 bunch green onions, diced whites and greens separated
- juice of 1 lemon half for the Cajun lemon butter, half for the polenta
- 1 9.2 oz box instant polenta
- 4½ cups chicken or vegetable broth
- 1 cup parmesan, grated
- 2 tablespoon salted butter
- ½ cup heavy cream
- kosher salt and fresh ground pepper, to taste
Cajun Lemon Butter
- 2 tablespoon salted butter
- ½ teaspoon cajun seasoning
- juice of half of the lemon from above
Instructions
- Cook the bacon. Cook the bacon over medium-high heat until crisp. Remove from the skillet and set aside.
- Cook the shrimp. Toss the shrimp with Cajun seasoning and Old Bay. Add to the skillet with the white parts of the green onions and cook for 1–2 minutes per side, until just cooked through. Remove from the skillet.
- Make the polenta. Bring the broth to a boil in a large pot. Slowly whisk in the polenta to prevent clumps. Cook for about 3 minutes, then remove from heat. Stir in the butter, heavy cream, and Parmesan until smooth. Add the juice of half the lemon and stir to combine.
- Assemble. Spoon the polenta into bowls and top with the shrimp. Sprinkle with the cooked bacon and green onion tops. Season with salt and pepper to taste.
- Make the sauce & finish. In the same skillet, melt the remaining butter. Stir in Cajun seasoning and the remaining lemon juice. Spoon over the shrimp and polenta and serve.
Notes
- 2 teaspoon smoked paprika
- 2 teaspoon kosher salt
- 1 teaspoon granulated garlic
- 1 teaspoon granulated onion
- 1 teaspoon dried thyme
- 1 teaspoon fresh ground pepper
- ½ teaspoon dried oregano
- ½ teaspoon cayenne, optional
Nutrition
Storage & Reheating
This Cajun shrimp and polenta stores well, just keep in mind the texture will change slightly as it sits.
- Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Reheat gently on the stovetop or in the microwave. Add a splash of broth or milk to loosen the polenta as it warms, and heat the shrimp just until warmed through.
- I don’t recommend freezing this one—the creamy polenta and shrimp are both much better fresh.
Recipe Testing Notes
- Polenta or grits: Either works here. Polenta is typically made from yellow corn and grits from white corn, but both will give you a creamy base for the shrimp.
- Frozen shrimp are great: I use frozen shrimp all the time. Thaw them completely and pat dry before seasoning and cooking.
More Cozy Shrimp Recipes to Try
If you’re into easy, comforting shrimp dinners, these are worth a look:
If shrimp is on the menu, here are a few more easy recipes to try:
- Lemon Shrimp Orzo: Creamy lemon orzo with shrimp and Boursin, all ready in about 30 minutes.
- Shrimp Coconut Curry: A creamy, flavor-packed curry that comes together quickly for an easy weeknight dinner.
- Sheet Pan Shrimp Boil: Shrimp, sausage, potatoes, and corn with classic shrimp boil flavor—all made on one pan.
- Shrimp Tacos: Quick shrimp tacos with lime slaw and avocado cotija crema.
- Shrimp and Okra Gumbo: A hearty, savory gumbo loaded with shrimp, okra, and plenty of Cajun flavor.
Who’s Stirring the Pot?
Hi, I’m Ruth—the recipe developer and comfort-food enthusiast behind Rufus For Real. I believe dinner should be the best part of your day, not the most stressful one. That’s why I focus on "no-drama" meals that are simple, satisfying, and impossible to mess up in a real-life kitchen.
I want to hear from you! How did you like my Shrimp and Polenta?! Let me know in the comments below—I read every single one!
You’ll find me sharing even more comfort-food goodness, kitchen tips, and behind-the-scenes chaos over on Instagram, Pinterest, Facebook, TikTok, and YouTube (@rufusforreal everywhere).
If you love approachable recipes with a whole lot of personality, pull up a chair—there’s always room at this table.
Happy Cooking!
-Ruth aka Rufus
