If you’re searching for a delightful dish that brings creamy, cheesy comfort together with the sweet taste of crab, this Crab Casserole with Swiss and Cheddar Cheese Recipe is your new best friend in the kitchen. It’s wonderfully simple yet impressively flavorful, blending smooth cream cheese and tangy mayonnaise with the savory notes of Swiss and cheddar cheeses. The delicate crab flakes mingle perfectly with just the right spices, creating a casserole that’s both indulgent and inviting. Whether for a weeknight dinner or a special gathering, this recipe is a showstopper that everyone will adore.

Ingredients You’ll Need
Gathering your ingredients for this Crab Casserole with Swiss and Cheddar Cheese Recipe is a breeze. Each component plays a key role in crafting the creamy texture and balanced flavor that make this dish so irresistible.
- Swiss cheese, 1 cup shredded: Adds a nutty, mellow flavor and melts beautifully to create a silky texture.
- Cream cheese, 4 ounces softened: Provides the creamy base that holds everything together with richness.
- Mayonnaise, â…“ cup: Brings moisture and tang for depth in the creamy mixture.
- Sour cream, ¼ cup: Adds a subtle tartness that balances the dish.
- Onion, 1 tablespoon minced: Gives a mild sweetness and aromatic foundation.
- Green pepper, 1 tablespoon minced: Offers a fresh and slightly crisp bite, brightening the casserole.
- Green onions, 3 chopped: Provide a sharp, fresh flavor that lifts the richness.
- Garlic powder, ½ teaspoon: Infuses a warm, savory background note.
- Mustard powder, ½ teaspoon: Adds a subtle tang and complexity without overpowering.
- Old Bay seasoning, ½ teaspoon: Classic seafood seasoning that elevates the crab’s natural sweetness with a hint of spice.
- Imitation crab meat, 14 ounces flake style: The star ingredient delivers sweet, delicate crab flavor in every bite.
- Cheddar cheese, ½ cup shredded: Contributes sharpness and a beautiful golden finish when baked.
- Chives, 1 tablespoon finely chopped: For a fresh, oniony garnish that brightens each serving.
- Steamed rice or pasta: Perfect for serving to soak up the luscious sauce.
How to Make Crab Casserole with Swiss and Cheddar Cheese Recipe
Step 1: Preheat and Prepare Your Dish
Start by heating your oven to 350 degrees Fahrenheit (175 degrees Celsius). Lightly grease your casserole dish so nothing sticks and the cheese melts beautifully. A preheated oven ensures that even cooking and that irresistible golden top.
Step 2: Create a Creamy Base
In a mixing bowl, blend the softened cream cheese, mayonnaise, and sour cream together. Mixing until smooth results in a luscious base that is both creamy and tangy, setting the stage for all the flavors to shine.
Step 3: Add Fresh Veggies and Seasonings
Stir in the minced onion, green pepper, chopped green onions, garlic powder, mustard powder, and Old Bay seasoning. This combination brings layers of flavor, from aromatic sweetness to gentle spice, which perfectly complement the crab.
Step 4: Fold in Cheese and Crab
Gently add the flaked imitation crab meat, shredded Swiss and cheddar cheeses, and chopped chives. Folding gently helps keep the crab pieces intact and ensures the cheese is evenly distributed for a balanced, cheesy bite every time.
Step 5: Bake Until Bubbly and Golden
Pour your mixture into the prepared casserole dish and bake uncovered for 25 to 30 minutes. Keep an eye out for a bubbly surface and a slightly golden top—that’s the sign your casserole is perfectly cooked and ready to enjoy.
Step 6: Serve Warm Over Rice or Pasta
Once baked, this Crab Casserole with Swiss and Cheddar Cheese Recipe is best served hot over a bed of steamed rice or your favorite pasta. The warm rice or pasta soaks up every bit of cheesy, savory goodness, making each forkful a dream.
How to Serve Crab Casserole with Swiss and Cheddar Cheese Recipe

Garnishes
Add a sprinkle of fresh chives or additional finely chopped green onions on top just before serving. These garnishes lend a pop of color and a fresh, bright flavor that contrast wonderfully with the creamy richness.
Side Dishes
Light, crisp salads with vinaigrette dressings or steamed seasonal vegetables pair beautifully with this casserole. Their freshness balances the indulgence, giving your meal perfect harmony.
Creative Ways to Present
For entertaining, serve your Crab Casserole with Swiss and Cheddar Cheese Recipe in individual ramekins for a charming personal touch. Alternatively, scooping it atop crispy toasted baguette slices transforms it into an irresistible appetizer that will have guests asking for the recipe.
Make Ahead and Storage
Storing Leftovers
After enjoying your meal, cover any leftovers tightly and refrigerate. The casserole holds well for up to 3 days, maintaining its creamy texture and flavor, making it a perfect next-day treat.
Freezing
This casserole freezes nicely when wrapped tightly in plastic wrap and foil or placed in an airtight container. Freeze it for up to 2 months. When ready to enjoy again, thaw overnight in the fridge for best results and to preserve texture.
Reheating
Reheat leftovers gently in a preheated oven at 325 degrees Fahrenheit until warmed through, about 15-20 minutes. This will keep the casserole’s creamy consistency intact and avoid drying it out, unlike microwaving.
FAQs
Can I use real crab meat instead of imitation crab?
Absolutely! Real crab meat makes this casserole even more decadent and authentic. Just be mindful to gently fold it in to keep those beautiful crab flakes intact.
Is it possible to make this casserole dairy-free?
You can substitute dairy-free cream cheese, mayonnaise, sour cream, and cheese alternatives, but keep in mind the flavor and texture will be somewhat different from the classic version.
What can I use instead of Old Bay seasoning?
If you don’t have Old Bay, a mix of paprika, celery salt, black pepper, and a touch of cayenne pepper can replicate a similar savory, slightly spicy flavor that complements the crab well.
Can I prepare this casserole ahead of time before baking?
Yes! You can assemble the casserole a day in advance and refrigerate it covered. When you’re ready to serve, bake it fresh for the best bubbly, golden finish.
Is the casserole good for freezing after baking?
It’s best to freeze the casserole before baking for optimal texture. Freezing after baking can cause the texture to become grainy when reheated, but it’s still tasty if done carefully.
Final Thoughts
This Crab Casserole with Swiss and Cheddar Cheese Recipe is one of those magical dishes that feels both luxurious and homey. It’s comforting yet elegant, easy to make but full of classy charm. If you’re craving a dish that soothes your soul with creamy cheese and sweet crab goodness, don’t hesitate to give this recipe a try—your taste buds will thank you!
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Crab Casserole with Swiss and Cheddar Cheese Recipe
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
Description
This Crab Casserole is a creamy, cheesy, and comforting seafood dish perfect for a cozy dinner. It combines imitation crab meat with a blend of cream cheese, mayo, sour cream, Swiss and cheddar cheeses, and a medley of spices, baked to golden perfection and served over rice or pasta.
Ingredients
Cheese and Dairy
- 1 cup Swiss cheese, shredded
- 4 ounces cream cheese, softened
- â…“ cup mayonnaise
- ¼ cup sour cream
- ½ cup cheddar cheese, shredded
Vegetables and Herbs
- 1 tablespoon onion, minced
- 1 tablespoon green pepper, minced
- 3 green onions, chopped
- 1 tablespoon chives, finely chopped
Seasonings
- ½ teaspoon garlic powder
- ½ teaspoon mustard powder
- ½ teaspoon Old Bay seasoning
Seafood
- 14 ounces imitation crab meat, flake style (Trans-Ocean Crab Classic recommended)
Serving Suggestion
- Steamed rice or pasta, for serving
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Lightly grease a casserole dish to prevent sticking during baking.
- Mix Base: In a large bowl, combine the softened cream cheese, mayonnaise, and sour cream. Stir until the mixture is smooth and creamy, ensuring an even base for the casserole.
- Add Flavorings: Add the minced onion, green pepper, chopped green onions, garlic powder, mustard powder, and Old Bay seasoning into the base mixture. Stir well to evenly distribute the flavors.
- Add Crab and Cheese: Gently fold in the flake-style imitation crab meat, shredded Swiss cheese, shredded cheddar cheese, and finely chopped chives. Mix carefully to combine all ingredients without breaking up the crab meat too much.
- Bake: Transfer the mixture into the prepared casserole dish, spreading it evenly. Bake uncovered in the preheated oven for 25 to 30 minutes until the top is bubbly and lightly golden.
- Serve: Remove the casserole from the oven and serve warm over steamed rice or pasta, according to your preference, to complete this hearty and flavorful meal.
Notes
- You can substitute fresh crab meat for imitation crab if preferred, adjusting the quantity to taste.
- For a spicier kick, add a pinch of cayenne pepper or red pepper flakes to the seasoning mix.
- If you want a lower-fat version, use light cream cheese, low-fat mayonnaise, and reduced-fat cheeses.
- Leftovers can be refrigerated in an airtight container for up to 3 days and reheated in the oven.
- This casserole pairs wonderfully with a crisp green salad or steamed vegetables for a balanced meal.

