If you love shrimp and crave something cozy, cheesy, and packed with flavor, then you are absolutely going to adore this Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe. It’s the perfect blend of tender shrimp, creamy cheeses, and that little kick of garlic and pepper that elevates every bite. Whether for a family dinner or a comforting weeknight treat, this casserole dish brings together simple ingredients for a satisfying, crowd-pleasing meal that keeps everyone coming back for more.

Ingredients You’ll Need
Getting the ingredients just right is key to nailing the perfect Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe. Each item plays a unique role, from the succulent shrimp giving body and flavor, to the melty cheeses adding richness and gooey delight, and the crunchy topping bringing excellent texture and visual appeal.
- Large shrimp (21-24 count), peeled and deveined: Choose fresh or thawed frozen shrimp for the best juicy, tender bite.
- Old Bay seasoning: Adds that classic seafood spice mix with a punch of herbs and warmth.
- Salt for cooking water: Enhances the shrimp’s natural flavor while boiling.
- Mayonnaise: Creates a creamy, tangy coating that melds all the flavors beautifully.
- Garlic powder: Delivers subtle but essential garlicky depth without overpowering.
- Ground black pepper: Brings just the right amount of heat and complexity.
- Butter: Used for greasing and in the topping, it enriches every element with smoothness and helps the crumbs brown perfectly.
- Panko bread crumbs: Light and airy, they provide a delightful crunch as the casserole bakes.
- Shredded mozzarella cheese: Melts into a stretchy, gooey texture that’s irresistible.
- Shredded medium cheddar cheese: Adds sharpness and depth that complements the mozzarella and shrimp.
How to Make Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe
Step 1: Preheat and Prepare
Start by heating your oven to 375°F (190°C). While it warms up, butter a 2 1/2 quart casserole dish to ensure your cheesy shrimp creation won’t stick and will bake evenly with a luscious golden crust. This prep step sets the stage for a flawlessly baked casserole.
Step 2: Cook the Shrimp
Bring a large pot of salted water to a rolling boil and add the Old Bay seasoning, infusing the water with seafood-friendly spices. Drop in the shrimp and cook for about 30 seconds until they turn opaque and perfectly tender. Drain them immediately to avoid overcooking and transfer to a mixing bowl. This quick poach keeps shrimp juicy and ready to soak up the casserole’s creamy goodness.
Step 3: Combine Flavors
Into the bowl with shrimp, add mayonnaise, garlic powder, and black pepper, stirring gently but thoroughly so every shrimp is coated in this savory base. Next, fold in the shredded mozzarella and cheddar cheeses, melding the gooey textures and sharpness with the seasoned shrimp for that unforgettable taste. Once combined, move this mixture into your prepared casserole dish for the next delicious step.
Step 4: Make the Topping
Melt the butter on low heat and stir in the panko bread crumbs until they soak up all the buttery richness. Sprinkle this mixture evenly over the shrimp and cheese filling. This topping is the secret weapon that will deliver a perfectly crisp, golden finish, contrasting beautifully with the creamy interior.
Step 5: Bake and Broil
Pop the casserole into your preheated oven and bake uncovered for 13 to 15 minutes, or until the center hits a safe 145°F and everything is bubbling with cheesy goodness. For the grand finale, switch to broil for 1 to 2 minutes to brown the breadcrumbs to a delightful crispness. Don’t skip the resting time after baking—it helps the casserole set, making every spoonful clean and luscious.
How to Serve Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe

Garnishes
The perfect finishing touch makes a world of difference. Try sprinkling fresh chopped parsley or chives over the casserole for a vibrant, color-packed contrast that also adds a mild herbal freshness. A light drizzle of lemon juice or a few lemon wedges on the side further brightens the dish and complements the rich seafood flavors.
Side Dishes
Pairing this Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe with lighter sides balances the rich and creamy main dish. Consider simple steamed green beans, a crisp garden salad with a light vinaigrette, or roasted asparagus. Each will contrast nicely without stealing spotlight from this hearty casserole.
Creative Ways to Present
If you want to impress guests or simply change things up, serve the casserole in individual ramekins for personalized portions. Add a sprinkle of extra cheese on top before serving and broil briefly to revive that golden crunchy topping. Alternatively, spoon portions over rice or creamy polenta for a comforting twist that soaks up every bit of the luscious sauce.
Make Ahead and Storage
Storing Leftovers
Any leftovers from this Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe can be stored in an airtight container in the refrigerator for up to 3 days. The flavors actually deepen overnight, making for an even tastier next-day meal. Just be mindful to cool the casserole completely before sealing to preserve its texture and avoid sogginess.
Freezing
This casserole freezes surprisingly well! Prepare the dish through combining all ingredients and placing them in the casserole dish but don’t bake. Wrap tightly with plastic wrap and foil, and store in the freezer for up to 2 months. When ready, thaw overnight in the fridge before baking as directed for a fresh-baked experience anytime you want.
Reheating
To reheat, preheat your oven to 350°F (175°C). Cover the casserole loosely with foil to prevent the topping from burning, and warm for about 15-20 minutes or until heated through. If you want to restore crispy breadcrumbs, remove the foil during the last 5 minutes. Microwave reheating is possible but may soften the topping.
FAQs
Can I use frozen shrimp for this recipe?
Absolutely! Just be sure to thaw the shrimp completely and pat them dry before cooking. This helps prevent excess water in your casserole, ensuring the best texture and flavor for the dish.
Is mayonnaise necessary in the recipe?
Yes, mayonnaise acts as the creamy binder that holds the shrimp and cheese together while adding a subtle tang that complements the garlic and pepper. It also helps create a luscious sauce that keeps the casserole moist.
Can I substitute the cheeses?
Feel free to experiment with cheeses, though mozzarella and cheddar provide the perfect balance of meltiness and flavor. For example, swapping cheddar for Monterey Jack or mozzarella for provolone can work, but keep the ratios similar for consistent results.
What if I don’t have Old Bay seasoning?
You can mix your own blend of celery salt, paprika, black pepper, and a pinch of cayenne to mimic Old Bay’s distinctive flavor. It’s a great alternative that can be customized to taste and still provides that signature seafood seasoning.
How long should I wait after baking before serving?
Let the casserole rest for about 15 minutes after removing from the oven. This resting period allows it to set up nicely, preventing it from falling apart when you scoop it and giving the flavors a moment to meld beautifully.
Final Thoughts
There is something truly special about the Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe. It brings together bold seasonings, creamy cheeses, and tender shrimp in a dish that’s both comforting and impressive. I encourage you to try making this recipe—it’s quick, rewarding, and has a way of turning any regular night into a memorable dinner. Once you taste it, this casserole will quickly become one of your go-to favorites too!
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Garlic Pepper Shrimp Casserole with Cheddar and Mozzarella Recipe
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Total Time: 35 minutes
- Yield: 8 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
Description
This Shrimp Casserole features tender, large shrimp coated in a creamy mayonnaise and cheese mixture, topped with a buttery panko breadcrumb crust. Cooked quickly by boiling the shrimp and finished with baking and broiling, this dish is perfect for a comforting seafood dinner that serves eight.
Ingredients
Shrimp and Seasoning
- 2 pounds large shrimp (21–24 count), peeled and deveined
- 1 tablespoon Old Bay seasoning, plus 1 tablespoon salt for cooking water
Mix-ins
- 2/3 cup mayonnaise
- 1/2 teaspoon garlic powder
- 1/2 teaspoon ground black pepper
- 4 ounces shredded mozzarella cheese
- 4 ounces shredded medium cheddar cheese
Topping
- 1 tablespoon butter, plus more to grease the pan
- 1/2 cup panko bread crumbs
Instructions
- Preheat and prep: Preheat your oven to 375°F (190°C). Grease a 2 1/2 quart casserole dish with butter to prevent sticking and prepare for baking.
- Cook shrimp: Bring a large pot of salted water to a boil, adding 1 tablespoon of Old Bay seasoning to flavor the water. Add the peeled and deveined shrimp and cook until they turn opaque, about 30 seconds. Drain the shrimp and transfer them to a mixing bowl.
- Combine ingredients: Add mayonnaise, garlic powder, and ground black pepper to the shrimp bowl. Stir gently to fully coat the shrimp. Then, fold in the shredded mozzarella and cheddar cheeses until evenly incorporated. Transfer this mixture to the prepared casserole dish, spreading it out evenly.
- Make topping: Melt 1 tablespoon of butter in a small pan or microwave. Stir in the panko bread crumbs until they are thoroughly coated with the butter. Sprinkle this breadcrumb mixture evenly over the shrimp and cheese filling in the casserole dish.
- Bake and broil: Place the casserole dish in the oven and bake uncovered for 13 to 15 minutes, or until the center reaches 145°F. For a golden brown breadcrumb topping, switch the oven to broil and cook for an additional 1 to 2 minutes, keeping a close watch to prevent burning.
- Rest and serve: Remove the casserole from the oven and let it rest for 15 minutes to allow the flavors to meld and the dish to set before serving. Enjoy warm.
Notes
- Be careful not to overcook the shrimp as they cook quickly and can become tough.
- Using a mixture of mozzarella and cheddar cheese balances meltiness with flavor.
- Broiling at the end gives a crunchy, golden breadcrumb topping but watch closely to avoid burning.
- Make sure to let the casserole rest to help it hold together when serving.

