Creamy Shrimp Casserole

Featured in Simple seafood recipes you'll love.

Tender shrimp baked with two cheeses, garlic sauce, Italian flavor, and crispy breadcrumbs on top.
Maria from tastyhush
Updated on Wed, 14 May 2025 17:36:23 GMT
Golden baked shrimp topped with cheese and herbs in one dish. Pin it
Golden baked shrimp topped with cheese and herbs in one dish. | tastyhush.com

I’ve got to tell you about this shrimp gratin that’s always the star at my dinners! Imagine tender shrimp under a dreamy, cheesy sauce with a crunchy golden topping. I stumbled on this dish ages ago and ever since, whenever garlic and herbs start sizzling, folks can’t wait to grab a fork. It's total comfort—every time.

Why This Tastes Amazing

The best part? Everyday staples turn into this knockout meal. Digging into that crispy, cheesy top down to the creamy shrimp underneath—it’s almost too good. Fancy enough for a big get-together, simple for a lazy night. People always want the how-to after one mouthful!

What You Need for Garlic Shrimp Gratin

  • Parmesan Cheese: That toasty, nutty bite on top is unbeatable.
  • Bread Crumbs: Crunchy panko is the way to go.
  • Fresh Parsley: Adds a pop of green and freshness.
  • Shallot: Sweeter than onions. Trust me, it matters.
  • Cheddar Cheese: Sharp flavor is where it’s at.
  • Italian Seasoning: Brings all those herbs together.
  • Shrimp: Medium ones cook just right.
  • Salt: Needed to let the shrimp sing.
  • Ground Nutmeg: The unexpected game-changer!
  • Milk: Go for whole if you want max creaminess.
  • All Purpose Flour: Thickens things up nicely.
  • Butter: Unsalted so you can salt it the way you like.
  • Extra Virgin Olive Oil: Good oil does make a difference.

Time To Make It Happen

Oven Time
Slide it in and just watch until it’s bubbling and the top’s a perfect golden brown!
That Awesome Crust
Pile on the breadcrumb and Parmesan mix right at the end for the crunchiest finish.
Layering Up
Liberally spice your shrimp, tuck them into your baking dish, and smother them in the creamy sauce. Gorgeous.
Sauce Magic
Get your roux nice and sturdy, pour in hot milk, and watch it all thicken smoothly.

Tricks for Even Better Results

Sometimes I swap in Gruyère for extra flavor. Want it a little spicy? Just sprinkle on some cayenne! Or do what I do and spoon it over pasta—the sauce is too tasty to leave behind!

Stay Tasty

This one holds up like a champ in the fridge for a few days. Want to prep ahead? Freeze it and let it thaw in the fridge before warming up. Feels great knowing there’s comfort food waiting for you!

Bubbly shrimp bake covered in crispy breadcrumbs and fresh herbs, straight out of the oven. Pin it
Bubbly shrimp bake covered in crispy breadcrumbs and fresh herbs, straight out of the oven. | tastyhush.com

Frequently Asked Questions

→ Can pre-cooked shrimp work here?
Fresh raw shrimp's the best option, but if you're using pre-cooked shrimp, shorten the baking time to keep them tender.
→ What shrimp size is best?
Medium ones are perfect, though larger shrimp cut into smaller pieces also work great.
→ Can I prep this earlier?
You can make the sauce and assemble everything, but wait to sprinkle the breadcrumbs till it's ready to bake.
→ What pairs well with this?
Try a fresh green salad, crusty bread, or steamed veggies as sides for this rich meal.
→ Can I swap the cheeses?
Feel free to trade cheddar for mozzarella or Gruyere. Just keep Parmesan for the crispy top.

Conclusion

Tender shrimp baked with two cheeses, garlic sauce, Italian flavor, and crispy breadcrumbs on top.

Creamy Shrimp Casserole

A seafood bake with shrimp in creamy, cheesy sauce and topped with golden breadcrumbs for the perfect crunch.

Prep Time
20 Minutes
Cook Time
25 Minutes
Total Time
45 Minutes
By: Maria

Category: Seafood

Difficulty: Intermediate

Cuisine: American

Yield: 4 Servings (1 casserole)

Dietary: ~

Ingredients

01 1 tablespoon butter.
02 1 tablespoon olive oil, extra-virgin.
03 2 tablespoons of plain flour for cooking.
04 30 raw medium shrimp, deveined and peeled.
05 1 shallot, sliced thin.
06 2 cups of milk.
07 A pinch of ground nutmeg.
08 Sprinkle with salt to suit your taste.
09 1 cup shredded Cheddar.
10 4 teaspoons of Italian seasoning, split.
11 1 tablespoon fresh parsley, chopped.
12 1/2 cup bread crumbs, dry.
13 1/2 cup Parmesan cheese, grated.

Instructions

Step 01

Set your oven to 350°F (175°C) to preheat.

Step 02

In a skillet, heat butter and oil. Stir in flour until it forms a paste, then slowly add the milk. Let it simmer until it thickens up. Mix in nutmeg and sprinkle some salt.

Step 03

Lay the shrimp in a baking dish. Toss them with salt and three teaspoons of Italian seasoning.

Step 04

Pour the sauce over the shrimp. Add Cheddar, shallots, the rest of the seasoning, and chopped parsley.

Step 05

Evenly scatter Parmesan and breadcrumbs on top.

Step 06

Pop it in the oven and bake for around 25 minutes until golden and crunchy.

Notes

  1. Start with uncooked shrimp for the best flavor and texture.
  2. Your sauce should turn out smooth and creamy.
  3. If prepping ahead, add topping right before baking.

Tools You'll Need

  • Baking dish.
  • Pan or skillet.
  • Mixing whisk.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains shrimp (shellfish).
  • Contains dairy ingredients like milk and cheese.
  • Includes gluten from flour and breadcrumbs.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 440
  • Total Fat: 25 g
  • Total Carbohydrate: 23 g
  • Protein: 31 g