Cajun Seafood Lasagna

Cajun Seafood Lasagna is a medium American (Cajun) recipe that serves 8. 450 calories per serving. Recipe by Ralphthebaker on YouTube.

Prep: 35 min | Cook: 40 min | Total: 1 hr 30 min

Cost: $120.01 total, $15.00 per serving

Ingredients

  • 1 stick Unsalted Butter (divided, 1/2 cup)
  • 1 pound Andouille Sausage (sliced)
  • 2 cans Crushed Tomatoes (28‑oz cans)
  • 18 ounces Tomato Paste (one 18‑oz can)
  • 2 tablespoons Cajun Seasoning (store‑bought or homemade)
  • 1 teaspoon Garlic Powder
  • 1 teaspoon Italian Seasoning
  • 1 teaspoon Salt
  • 0.5 teaspoon Black Pepper (freshly ground)
  • 1 tablespoon Sugar
  • 2 pounds Shrimp (peeled and deveined)
  • 1 pound Crawfish (cooked, tails removed)
  • 1 cup Pepper Jack Cheese (shredded)
  • 1 cup Mozzarella Cheese (shredded)
  • 1 cup Sharp Cheddar Cheese (shredded)
  • 0.5 cup Parmesan Cheese (grated)
  • 12 pieces Lasagna Noodles (no‑boil or regular, pre‑cooked according to package)
  • 1 sheet Aluminum Foil (to cover lasagna)

Instructions

  1. Brown the Sausage

    Melt 1/2 stick of butter in a large pot over medium heat, add the sliced Andouille sausage and cook until browned, breaking it up with a wooden spoon.

    Time: PT5M

    Temperature: medium heat on stove

  2. Build the Tomato Base

    Add the crushed tomatoes, tomato paste, Cajun seasoning, garlic powder, Italian seasoning, salt, pepper and sugar. Stir well and bring to a gentle simmer.

    Time: PT15M

    Temperature: low simmer

  3. Add Seafood

    Stir in the shrimp and crawfish, sprinkle an extra pinch of Cajun seasoning, and cook until the shrimp turn pink and the crawfish are heated through, about 3‑4 minutes.

    Time: PT5M

    Temperature: medium heat

  4. Preheat Oven

    Preheat the oven to 350°F (175°C).

    Time: PT10M

    Temperature: 350°F

  5. Assemble the Lasagna

    Spread a thin layer of sauce on the bottom of the baking dish. Layer 4 lasagna noodles, then half the sauce, then a mixture of all four cheeses. Repeat the noodle‑sauce‑cheese layers, ending with a final layer of noodles, remaining sauce, and the rest of the cheese on top.

    Time: PT10M

  6. Bake Covered

    Cover the dish tightly with aluminum foil and bake for 20 minutes.

    Time: PT20M

    Temperature: 350°F

  7. Bake Uncovered

    Remove the foil and bake an additional 10 minutes until the cheese on top is golden and bubbling.

    Time: PT10M

    Temperature: 350°F

  8. Rest Before Serving

    Allow the lasagna to rest for 10 minutes before cutting. This helps the layers set and makes slicing easier.

    Time: PT10M

Nutrition Facts

Calories
450
Protein
30g
Carbohydrates
35g
Fat
20g
Fiber
3g

Dietary info: High protein, Contains dairy, Contains shellfish, Not vegan, Not vegetarian

Allergens: Dairy, Shellfish, Gluten

Last updated: April 7, 2026

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Cajun Seafood Lasagna

Recipe by Ralphthebaker

A hearty, spicy lasagna layered with buttery Andouille sausage, succulent shrimp, crawfish, and a rich Cajun‑spiced tomato sauce, finished with a blend of pepper jack, mozzarella, sharp cheddar and Parmesan cheeses. Perfect for a comforting dinner with a Southern twist.

MediumAmerican (Cajun)Serves 8

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
30m
Prep
55m
Cook
10m
Cleanup
1h 35m
Total

Cost Breakdown

$120.01
Total cost
$15.00
Per serving

Critical Success Points

  • Brown the Andouille sausage fully for flavor
  • Do not overcook the shrimp
  • Cover with foil for the first 20 minutes to keep cheese from burning
  • Let the lasagna rest before slicing

Safety Warnings

  • Handle raw shrimp and crawfish with separate cutting board to avoid cross‑contamination
  • Use oven mitts when handling hot baking dish and foil
  • Be careful when removing hot foil to prevent steam burns

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of Seafood Cajun Lasagna in American Cajun cuisine?

A

Seafood Cajun Lasagna blends the classic Italian layered pasta with the bold, spicy flavors of Louisiana Cajun cooking, reflecting the region’s love for seafood and hearty comfort dishes. It’s a modern fusion that showcases the influence of French, Spanish, and African culinary traditions in Cajun culture.

cultural
Q

What traditional regional variations of Cajun‑style lasagna exist in Louisiana cuisine?

A

In Louisiana, some cooks replace the tomato base with a roux‑based sauce, use local shellfish like crab or oyster, and add okra or bell peppers for extra texture. Others incorporate a touch of Creole mustard or hot sauce for additional heat.

cultural
Q

How is Seafood Cajun Lasagna traditionally served in Cajun households?

A

It is typically served hot from the oven, accompanied by a simple green salad, crusty French bread, and sometimes a side of coleslaw. A cold beer or sweet tea is a common beverage pairing.

cultural
Q

During what celebrations or gatherings is Seafood Cajun Lasagna commonly prepared in Cajun culture?

A

It often appears at family reunions, Mardi Gras parties, and holiday gatherings such as Thanksgiving or Christmas when a crowd‑pleasing, crowd‑friendly dish is needed.

cultural
Q

What makes Seafood Cajun Lasagna special compared to traditional Italian lasagna in the broader American cuisine?

A

The use of Andouille sausage, shrimp, crawfish, and Cajun seasoning gives it a smoky, spicy profile that’s distinct from the herb‑and‑tomato focus of classic Italian lasagna, creating a unique fusion of textures and flavors.

cultural
Q

What are the authentic traditional ingredients for Seafood Cajun Lasagna versus acceptable substitutes?

A

Authentic ingredients include smoked Andouille sausage, peeled shrimp, cooked crawfish tails, Cajun seasoning, and a blend of pepper jack, mozzarella, sharp cheddar, and Parmesan cheeses. Substitutes can be smoked sausage for Andouille, scallops for shrimp, or Monterey Jack for pepper jack without losing the dish’s character.

cultural
Q

What other Cajun dishes pair well with Seafood Cajun Lasagna?

A

Pairs nicely with classic Cajun sides such as red beans and rice, corn maque choux, or a simple remoulade‑dressed green salad. A chilled glass of Riesling or a light lager balances the spice.

cultural
Q

What are the most common mistakes to avoid when making Seafood Cajun Lasagna?

A

Common errors include overcooking the shrimp (making them rubbery), using too much sauce which makes the lasagna soggy, and skipping the foil cover for the first part of baking, which can cause the cheese to burn before the interior is cooked through.

technical
Q

Why does this Seafood Cajun Lasagna recipe use a 20‑minute covered bake followed by a 10‑minute uncovered bake?

A

Covering the lasagna traps steam, ensuring the noodles cook evenly and the cheese melts without browning too quickly. Removing the foil for the final 10 minutes allows the top cheese to develop a golden, bubbly crust.

technical
Q

Can I make Seafood Cajun Lasagna ahead of time and how should I store it before baking?

A

Yes. Prepare the sauce and assemble the lasagna up to the point of covering with foil, then refrigerate for up to 24 hours. Keep it tightly wrapped; bake directly from the fridge, adding a few extra minutes if needed.

technical
Q

What does the YouTube channel Ralphthebaker specialize in?

A

The YouTube channel Ralphthebaker specializes in approachable, step‑by‑step home baking and cooking tutorials that blend classic comfort foods with creative twists, often featuring detailed visual guides and practical kitchen tips.

channel
Q

How does the YouTube channel Ralphthebaker's approach to Cajun cooking differ from other Cajun cooking channels?

A

Ralphthebaker focuses on clear, concise instruction with a strong emphasis on technique and ingredient sourcing, often adapting traditional Cajun flavors into familiar American dishes like lasagna, whereas many other channels stick strictly to regional recipes.

channel

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