Asparagus Crab Au Gratin Recipe

A family-favorite, creamy, cheesy Asparagus Crab Au Gratin! This quick and easy recipe elevates simple ingredients into a decadent dish, perfect for a weeknight dinner or special occasion. Get ready for tender asparagus, sweet crab meat, and a perfectly browned, bubbly topping.

Prep Time 15 mins
Cook Time 45 mins
Calories 296.1 kcal
Protein 34g
Rating 4.8 (5 Reviews)
Asparagus Crab Au Gratin

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Recipe Author

Chef Forktionary, author of this recipe

Passionate home cook & Forktionary contributor.

Ingredients for Asparagus Crab Au Gratin

  • Frozen Asparagus Cuts
  • Crabmeat
  • Cheddar Cheese
  • 4 tablespoons (1/2 stick) butter
  • All Purpose Flour
  • 1 cup whole milk
  • Ground Mustard
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 tablespoon lemon juice
  • Soft Breadcrumbs

How to Make Asparagus Crab Au Gratin

  1. Preheat oven to 350°F (175°C).
  2. Grease a 1-quart baking dish.
  3. Blanch asparagus in boiling water for 2 minutes, then immediately plunge into ice water to stop cooking. Drain well.
  4. Arrange blanched asparagus in the prepared baking dish.
  5. Top with crab meat and Gruyere cheese.
  6. In a medium saucepan, melt 2 tablespoons of butter over medium heat.
  7. Whisk in flour until smooth; cook for 1 minute, stirring constantly.
  8. Gradually whisk in milk until smooth. Add Dijon mustard, salt, and pepper.
  9. Bring to a simmer, stirring frequently, until thickened (about 2 minutes).
  10. Remove from heat and stir in lemon juice.
  11. Pour the cheese sauce evenly over the crab and asparagus.
  12. Melt remaining 2 tablespoons of butter and toss with panko bread crumbs.
  13. Sprinkle bread crumbs evenly over the top.
  14. Bake uncovered for 30-35 minutes, or until golden brown and bubbly.

Chef's Tip for Extra Flavor

Chef's secret: layers of flavor make a dish truly memorable! Consider what a little extra something could bring – perhaps a touch of acidity like a good vinegar or citrus zest, a hint of smokiness from paprika, a bit of umami from mushrooms or soy sauce, or a sprinkle of toasted nuts for texture. Experiment and taste as you go!

Nutrition Information (Approximate per serving)

Sodium

38 g

Sugar

2g

Fat

59g

Carbs

4g