How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Crab Mornay?

You need 12 ingredients. The key ingredients include: 1 package (10 ounces) frozen puff pastry shells, 1/2 cup butter, cubed, 1 jar (6 ounces) sliced mushrooms, drained, 6 green onions, sliced, and more.

Is Crab Mornay suitable as seafood?

Yes, Crab Mornay falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Crab Mornay?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Crab Mornay Recipe

Name: Crab Mornay
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 package (10 ounces) frozen puff pastry shells; 1/2 cup butter, cubed; 1 jar (6 ounces) sliced mushrooms, drained; 6 green onions, sliced; 1 jar (4 ounces) diced pimientos, drained; 2 tablespoons all-purpose flour; 1 can (12 ounces) evaporated milk; 2 cups shredded Swiss cheese; 3 cans (6 ounces each) crabmeat, drained, flaked and cartilage removed; 1 teaspoon salt; 1/8 teaspoon cayenne pepper; 1/3 cup minced fresh parsley

Try this homemade Crab Mornay recipe the whole family will love. Made with pastry shells, butter, mushrooms and green onions. Easy step-by-step instruct…

This Crab Mornay relies on simple, everyday ingredients such as butter, cubed, green onions, sliced, all-purpose flour and (12 ounces) evaporated milk. It comes together quickly and makes 4 servings, at about 592 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Crab Mornay

Tips for the best results

Variations & substitutions

My Personal Notes

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