Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A decadent seafood twist on classic comfort food featuring tender lobster chunks enveloped in a creamy Gruyère cheese sauce topped with crisp golden breadcrumbs. This american-inspired seafood ready in about 40 minutes pairs ounces elbow macaroni, tablespoons unsalted butter, all-purpose flour for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 580 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 25 min Serves 6 American cuisine 580 cal/serving
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Ingredients

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Instructions

  1. Step 1: Bring a large pot of salted water to a boil. Add 12 ounces elbow macaroni and cook for 7-8 minutes until al dente. Drain and set aside.
  2. Step 2: In a large saucepan over medium heat, melt 4 tablespoons unsalted butter. Whisk in 1/4 cup all-purpose flour and cook for 1-2 minutes until golden and bubbly.
  3. Step 3: Gradually whisk in 3 cups whole milk, continuing to whisk until the sauce thickens and coats the back of a spoon, about 5-7 minutes.
  4. Step 4: Remove from heat and stir in 1 cup shredded sharp cheddar cheese, 1 1/2 cups shredded Gruyère cheese, 1 teaspoon Dijon mustard, 1 teaspoon salt, and 1/2 teaspoon black pepper until melted and smooth.
  5. Step 5: Fold in the cooked macaroni and 1 cup chopped cooked lobster meat until evenly coated.
  6. Step 6: Preheat the broiler. Pour macaroni mixture into a buttered 9x13-inch baking dish.
  7. Step 7: In a small bowl, toss 1 cup panko breadcrumbs with 2 tablespoons olive oil and 1/2 teaspoon paprika. Sprinkle evenly over the macaroni.
  8. Step 8: Broil for 3-5 minutes until the breadcrumbs are golden brown and crispy. Let rest for 5 minutes before serving.

Frequently asked questions

How long does Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping take to make?

Total time is about 40 minutes (15 min prep + 25 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep ounces elbow macaroni from drying out.

Can I substitute ingredients in Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Lobster Macaroni and Cheese with Gruyère and Breadcrumb Topping?

American seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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