If you’re craving a dish that embodies the spirit of Louisiana, look no further than this Louisiana Casserole! Bursting with flavors from succulent shrimp, spicy andouille sausage, and vibrant bell peppers, this casserole is the perfect comfort food for any occasion. It’s simple to prepare and makes for a satisfying meal that feeds a crowd. Whether you’re hosting a dinner party or enjoying a cozy night in, this Louisiana Casserole will leave everyone asking for seconds.
What Makes This Recipe Special

What sets this Louisiana Casserole apart is its delightful combination of ingredients that represent the heart and soul of Cajun cuisine. The inclusion of both shrimp and andouille sausage creates a delicious harmony of flavors, while the fire-roasted tomatoes add a smoky depth. The blend of Cajun seasoning infuses the dish with a kick, making it irresistible. Plus, the crispy breadcrumb and parmesan topping gives it the perfect finishing touch, ensuring every bite is packed with flavor and texture.
Ingredients at a Glance

- 1 pound shrimp, peeled and deveined
- ½ cup butter, salted
- 1 yellow onion, minced (about ⅓ cup)
- 1 green bell pepper, diced (about 1 cup)
- 1 red bell pepper, diced (about 1 cup)
- 2 cloves garlic, minced (about 2 teaspoons)
- 14 ounces andouille sausage, cut into ½ inch rounds
- 1 teaspoon salt
- ½ teaspoon pepper
- 3 cups cooked rice, white or brown
- 1 (14.5-ounce) can fire-roasted tomatoes
- 2 tablespoons Cajun seasoning
- ½ cup parmesan cheese, grated
- ¼ cup plain bread crumbs
- ½ teaspoon salt
- ½ teaspoon pepper
Must-Have Equipment
- Large skillet: For sautéing the vegetables and sausage.
- Large mixing bowl: To combine all the ingredients thoroughly.
- Baking dish: A 9×13 inch dish works perfectly for this casserole.
- Spatula: For mixing and spreading the casserole evenly.
- Aluminum foil: To cover the casserole while baking, if necessary.
Louisiana Casserole Cooking Guide
Step 1: Prepare the Ingredients
Start by gathering all your ingredients. Make sure the shrimp is peeled and deveined, the sausages are cut into rounds, and the rice is cooked. Preheat your oven to 350°F (175°C) while you prepare the rest of the ingredients.
Step 2: Sauté the Vegetables and Sausage
In a large skillet, melt the butter over medium heat. Add the minced onion, diced green and red bell peppers, and minced garlic. Sauté for about 5-7 minutes until the vegetables are tender and fragrant. Next, add the andouille sausage and cook for an additional 5 minutes until the sausage is heated through and browned slightly.
Step 3: Mix Everything Together
In a large mixing bowl, combine the cooked rice, sautéed sausage and vegetable mixture, shrimp, fire-roasted tomatoes, Cajun seasoning, salt, and pepper. Stir until everything is well combined and evenly distributed.
Step 4: Transfer to Baking Dish
Pour the mixture into a greased 9×13 inch baking dish. Spread it out evenly so that it cooks uniformly.
Step 5: Add Toppings
In a small bowl, combine the grated parmesan cheese, plain bread crumbs, salt, and pepper. Sprinkle this mixture evenly over the top of the casserole. This will give your dish a deliciously crunchy topping.
Step 6: Bake the Casserole
Cover the baking dish with aluminum foil and place it in the preheated oven. Bake for 25 minutes, then remove the foil and bake for an additional 10-15 minutes, or until the top is golden and crispy.
Step 7: Serve and Enjoy!
Once baked, remove the casserole from the oven and let it sit for a few minutes before serving. This Louisiana Casserole is best enjoyed hot, perhaps with a sprinkle of fresh parsley for garnish. Serve it alongside a fresh green salad or some crusty bread for a complete meal.
Season-by-Season Upgrades
- Spring: Add fresh asparagus or peas for a pop of color and freshness.
- Summer: Incorporate fresh corn or diced zucchini for a seasonal twist.
- Fall: Substitute butternut squash for a sweeter flavor and added texture.
- Winter: Use kale or collard greens for a hearty addition that complements the spices.
Troubleshooting Tips
- If the casserole is too dry, consider adding a splash of chicken broth before baking.
- For an extra kick, add more Cajun seasoning or a few dashes of hot sauce to the mixture.
- If the top browns too quickly, cover it with aluminum foil to prevent burning.
- Ensure the shrimp is cooked through; they should be pink and opaque when done.
Freezer-Friendly Notes
This Louisiana Casserole is a fantastic make-ahead dish! You can prepare it entirely and freeze it before baking. Just cover it tightly with plastic wrap and aluminum foil. When you’re ready to cook, allow it to thaw in the refrigerator overnight and bake as directed. You can also freeze individual portions for quick meals later on!
Frequently Asked Questions
Can I use a different type of sausage?
Absolutely! While andouille sausage adds a distinct flavor, feel free to use any smoked sausage or chicken sausage for a lighter option.
How can I make this casserole spicier?
You can increase the amount of Cajun seasoning, add diced jalapeños, or drizzle some hot sauce over the top before baking to amp up the heat.
Can I make this dish vegetarian?
Yes! Simply omit the shrimp and sausage, and replace them with your favorite plant-based protein, like tempeh or mushrooms, for a hearty vegetarian version.
What should I serve with Louisiana Casserole?
This casserole is delicious on its own, but it pairs well with a fresh green salad, cornbread, or some crusty French bread to soak up all the flavorful juices.
Make It Tonight
This Louisiana Casserole is a dish that brings warmth and joy to any table. With its savory layers of shrimp, sausage, and spices, it captures the essence of Louisiana cooking in every bite. Gather your ingredients, follow the simple steps, and treat yourself and your loved ones to a flavorful experience that’s sure to satisfy. So why wait? Dive into this delicious Louisiana Casserole tonight and enjoy a taste of the South!

Louisiana Casserole
Ingredients
- 1 pound shrimp peeled and deveined
- ½ cup butter salted
- 1 medium yellow onion minced (about ⅓ cup)
- 1 cup green bell pepper diced (about 1 cup)
- 1 cup red bell pepper diced (about 1 cup)
- 2 cloves garlic minced (about 2 teaspoons)
- 14 ounces andouille sausage cut into ½ inch rounds
- 1 teaspoon salt
- ½ teaspoon pepper
- 3 cups cooked rice white or brown
- 1 can fire-roasted tomatoes 14.5-ounce
- 2 tablespoons Cajun seasoning
- ½ cup parmesan cheese grated
- ¼ cup plain bread crumbs
- ½ teaspoon salt
- ½ teaspoon pepper
Instructions
- Start by gathering all your ingredients. Make sure the shrimp is peeled and deveined, the sausages are cut into rounds, and the rice is cooked. Preheat your oven to 350°F (175°C) while you prepare the rest of the ingredients.
- In a large skillet, melt the butter over medium heat. Add the minced onion, diced green and red bell peppers, and minced garlic. Sauté for about 5-7 minutes until the vegetables are tender and fragrant. Next, add the andouille sausage and cook for an additional 5 minutes until the sausage is heated through and browned slightly.
- In a large mixing bowl, combine the cooked rice, sautéed sausage and vegetable mixture, shrimp, fire-roasted tomatoes, Cajun seasoning, salt, and pepper. Stir until everything is well combined and evenly distributed.
- Pour the mixture into a greased 9x13 inch baking dish. Spread it out evenly so that it cooks uniformly.
- In a small bowl, combine the grated parmesan cheese, plain bread crumbs, salt, and pepper. Sprinkle this mixture evenly over the top of the casserole. This will give your dish a deliciously crunchy topping.
- Cover the baking dish with aluminum foil and place it in the preheated oven. Bake for 25 minutes, then remove the foil and bake for an additional 10-15 minutes, or until the top is golden and crispy.
- Once baked, remove the casserole from the oven and let it sit for a few minutes before serving. This Louisiana Casserole is best enjoyed hot, perhaps with a sprinkle of fresh parsley for garnish. Serve it alongside a fresh green salad or some crusty bread for a complete meal.
Equipment
- Large Skillet
- Large Mixing Bowl
- Baking Dish
- Spatula
- Aluminum Foil
Notes
- Feel free to substitute the shrimp with your favorite plant-based protein for a vegetarian option.
- Make ahead and freeze before baking for a quick meal later.
- Add a splash of chicken broth if the casserole is too dry.
