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Crab Casserole Recipe

Seafood dishes always bring a touch of summer to the table — but who says you can’t enjoy them year-round? This Crab Casserole is a creamy, cheesy, and comforting dish that works beautifully as an appetizer, side, or even a main course. It’s the perfect crab bake: rich, flavorful, and ready in just 30 minutes. Serve it with a crisp salad, crusty bread, or toasted baguette slices for a cozy and satisfying meal.

🦀 Why You’ll Love This Crab Casserole

  • Creamy, cheesy, and full of seafood flavor.
  • Quick and easy — just mix, bake, and serve!
  • Great for brunch, dinner, or party appetizers.
  • Can be made with real or imitation crab.
  • Freezer-friendly and perfect for meal prep.

🧂 Ingredients You’ll Need

  • 1 lb imitation crab meat – or use real lump crab meat if preferred.
  • 3 green onions, chopped – include both white and green parts for full flavor.
  • ⅓ cup mayonnaise – adds richness and helps bind the casserole.
  • ¼ cup sour cream – gives the dish a creamy tang.
  • 4 oz cream cheese, softened – makes the casserole luxuriously smooth.
  • 1 cup shredded Swiss cheese – brings a slightly nutty, bold flavor.
  • 1 tsp garlic powder – adds depth and aroma.
  • 1 tsp mustard powder – cuts through the creaminess with a subtle kick.
  • 1 tsp salt – to balance the flavors.
  • ½ cup shredded cheddar cheese – for a golden, bubbly topping.

👩‍🍳 How to Make Crab Casserole

  1. Preheat your oven to 350°F (175°C).
  2. In a large bowl, combine the crab meat, green onions, mayonnaise, sour cream, cream cheese, garlic powder, mustard powder, and salt.
  3. Stir in the shredded Swiss cheese until evenly mixed.
  4. Spoon the mixture into a baking dish.
  5. Bake for 20–25 minutes, until hot and bubbly.
  6. Sprinkle the shredded cheddar cheese on top and bake for another 5 minutes, until melted and golden.

❄️ Storage and Reheating Tips

  • Refrigerate: Store leftovers in an airtight container for up to 4 days.
  • Freeze: Wrap tightly and freeze for up to 4 months.
  • Reheat: Warm in the microwave for 1–2 minutes (if chilled) or 5–6 minutes (if frozen). You can also reheat in a 350°F oven for 10–20 minutes until warmed through.

🍽️ What to Serve With Crab Casserole

  • Serve as an appetizer with toasted baguette slices or crackers.
  • Pair it with a fresh green salad for a light meal.
  • Include it on a brunch table alongside favorites like Breakfast Casseroles, Egg Boats, or French Toast Sticks.
  • It also makes a great addition to a party spread with Sausage Stuffed Jalapeños and Cream Cheese Sausage Balls.

💡 Recipe Tips

  • Let the cream cheese soften before mixing for a smooth texture.
  • Use freshly shredded cheese — pre-shredded varieties don’t melt as well.
  • Adjust the crab texture by chopping it finely for a smooth dip or leaving it chunky for a heartier casserole.
  • Don’t skip the mustard and garlic powder — they bring essential flavor balance!

⭐ More Crab Recipes You’ll Love

  • [Best-Ever Crab Cakes]
  • [Cheesy Crab Rangoon Dip]
  • [Spicy Creole Shrimp Dip]
  • [Buffalo Chicken Dip]

🧀 Crab Casserole Recipe

Course: Side Dish
Cuisine: Seafood
Prep Time: 5 minutes
Cook Time: 30 minutes
Total Time: 35 minutes
Servings: 6
Calories: 345 kcal

Nutrition (per serving):
Calories: 345 | Carbs: 7g | Protein: 20g | Fat: 25g

This Crab Casserole is creamy, cheesy, and packed with seafood flavor — perfect for brunches, holidays, or weeknight comfort meals. Whether made with imitation crab or fresh lump crab meat, it’s guaranteed to impress!