Lobster Crab and Shrimp Mac and Cheese Recipe

This lobster crab and shrimp mac and cheese recipe layers cavatappi pasta with Gruyere, sharp cheddar, Parmesan, and cream cheese sauce.

Buy one pound total fresh seafood including lobster tail, lump crab, and large shrimp.

Cook pasta two minutes under al dente then sear seafood separately in batches.

Build a roux with butter and flour then whisk in heavy cream and milk.

Melt cheeses over low heat one at a time to prevent graininess.

Fold seafood gently into coated pasta then bake at 375 degrees Fahrenheit for twenty minutes.

Rest ten minutes before serving.

Gather fresh lobster crab shrimp pasta and cheese ingredients.

Seafood selection

Buy one pound total mixed seafood for this lobster crab and shrimp mac and cheese recipe. Pick lobster tail meat eight ounces. Add lump crab meat six ounces. Include large shrimp eight ounces peeled deveined. Fresh beats frozen for texture. Check sell-by dates. Pat dry before cooking. Remove any shell fragments. Cut lobster into bite-size chunks. Leave crab in lumps. Halve shrimp if extra large.

Pasta shape

Use cavatappi or elbow macaroni. One pound dry pasta serves six. Ridged shapes hold sauce better. Cook two minutes under package directions. Pasta continues cooking in oven. Reserve one cup pasta water before draining. This starch helps bind the sauce.

Cheese blend

Dairy and aromatics

• Heavy cream: two cups
• Whole milk: one cup
• Unsalted butter: four tablespoons
• Garlic: four cloves minced
• Shallot: one diced
• All-purpose flour: three tablespoons for roux

Seasoning mix

Old Bay seasoning two teaspoons. Paprika half teaspoon. Nutmeg quarter teaspoon. Salt and black pepper to taste. Fresh parsley quarter cup chopped for garnish. Lemon zest one teaspoon optional. Cayenne pinch for heat.

Prep timeline

Grate cheeses first. They melt faster from room temperature. Chop aromatics. Measure liquids. Set oven to 375 degrees Fahrenheit. Butter a nine by thirteen baking dish. Prep takes fifteen minutes.

Cook pasta al dente and sear seafood separately.

Boil the pasta

Bring six quarts salted water to rolling boil.

Add one pound cavatappi or elbow macaroni.

Stir immediately to prevent sticking.

Cook exactly two minutes less than package directions for al dente texture.

The pasta finishes cooking in the cheese sauce later.

Reserve one cup starchy pasta water before draining.

This liquid gold thickens sauce and helps it cling.

Drain pasta in colander.

Do not rinse.

The starch coating helps sauce adhere.

Toss with one tablespoon olive oil to prevent clumping.

Set aside.

Sear the seafood

Heat large skillet over medium-high heat.

Add two tablespoons butter and one tablespoon olive oil.

Pat seafood completely dry with paper towels.

Moisture prevents browning and creates rubbery texture.

Work in batches to avoid crowding.

Crowded pan steams instead of sears.

Cook shrimp first.

Season with pinch of salt and Old Bay.

Lay flat in single layer.

Sear ninety seconds per side until pink and opaque.

Remove immediately.

Overcooked shrimp turn tough and curl tightly.

Add more butter if needed.

Sear lobster chunks two minutes per side until edges turn golden and centers opaque.

The meat should feel firm but yield slightly to pressure.

Remove promptly.

Gently warm crab meat last.

Fold into pan thirty seconds just to heat through.

Lump crab breaks apart easily.

Avoid stirring aggressively.

The goal is warm not browned.

Timing reference

Hold and rest

Transfer seared seafood to plate.

Tent loosely with foil.

Rest five minutes.

This redistributes juices.

Combine all cooked seafood in large bowl.

Drizzle any accumulated juices into cheese sauce later for extra flavor.

Do not cook seafood fully through at this stage.

It continues cooking in the oven bake.

Slightly underdone now prevents overcooked rubbery seafood in final dish.

Whisk heavy cream with cheeses for rich sauce.

Build the roux

Melt four tablespoons butter in large saucepan over medium heat.

Add three tablespoons all-purpose flour.

Whisk constantly two minutes until blonde and bubbling.

This eliminates raw flour taste.

The roux thickens the cheese sauce for the lobster crab and shrimp mac and cheese recipe.

Add cream and milk

Slowly pour two cups heavy cream and one cup whole milk.

Whisk continuously to prevent lumps.

Scrape pan edges.

Bring to gentle simmer.

Cook three minutes until mixture coats back of spoon.

Sauce thickens more as it cools.

Melt the cheese blend

Reduce heat to low before adding cheeses.

Wait each addition melts completely before next.

This prevents grainy texture.

Reserve two tablespoons Parmesan for topping later.

Sauce should flow slowly off spoon.

If too thick, add reserved pasta water quarter cup at time.

Season the sauce

Stir in two teaspoons Old Bay seasoning.

Add half teaspoon paprika.

Pinch nutmeg.

Salt and pepper to taste.

Add any seafood juices collected from resting plate.

This boosts umami.

Keep sauce warm on lowest heat.

Stir occasionally.

Do not boil.

High heat breaks cheese sauce and causes separation.

Combine pasta seafood and sauce in baking dish.

Coat the pasta

Return drained pasta to large pot or mixing bowl.

Pour warm cheese sauce over top.

Use wooden spoon to stir continuously.

Work quickly while sauce flows easily.

Scrape bottom and sides.

Every piece needs coating.

Add reserved pasta water two tablespoons at time if sauce too thick.

Mixture should look glossy not dry.

Taste for salt.

Adjust now before adding seafood.

Fold seafood gently

Add seared lobster crab and shrimp to pasta mixture.

Switch to rubber spatula.

Cut down center.

Scrape bottom.

Fold over top.

Rotate bowl quarter turn.

Repeat six times maximum.

Stop when seafood distributes evenly.

Visible chunks should remain.

Overmixing breaks crab into stringy pieces.

Shrimp toughen with excess handling.

Transfer and top

Pour mixture into buttered nine by thirteen baking dish.

Use offset spatula to spread corner to corner.

Press gently with back of spoon.

Eliminate air pockets.

Create level surface.

Sprinkle reserved Parmesan evenly.

Add half cup extra Gruyere for golden crust.

Optional: mix half cup panko with one tablespoon melted butter.

Scatter across top for crunch.

Dust with paprika.

The dish holds heat twenty minutes before baking.

Bake twenty minutes until golden and bubbly.

Oven position

Preheat to 375 degrees Fahrenheit.

Place rack in center.

Slide baking dish onto rack carefully.

Center the pan for even heat circulation.

Bake time

Bake twenty minutes exactly.

Set timer immediately.

Cheese bubbles around edges at fifteen minutes.

Continue baking for golden crust.

Top turns deep amber color.

Panko topping sounds faintly crisp when tapped.

Internal temperature hits 165 degrees Fahrenheit.

Insert thermometer into pasta center.

Sauce looks thick not soupy.

Doneness cues

• Edges bubble vigorously
• Center puffs slightly
• Cheese spots turn dark gold
• Aroma smells nutty and toasted
• Seafood visible through cheese glaze

Rest the dish

Remove from oven.

Place on wire cooling rack.

Rest ten minutes minimum.

Sauce thickens as temperature drops.

Cutting early creates runny plates.

Seafood finishes cooking gently.

Texture sets perfectly during rest.

Garnish and serve

Sprinkle fresh parsley.

Add lemon zest.

Cut into six squares.

Use large serving spoon.

Scoop from bottom to get sauce.

Serve with simple green salad.

Crusty bread optional for sauce.

Store leftovers

Cool to room temperature.

Cover tightly with foil.

Refrigerate up to three days.

Reheat individual portions microwave two minutes.

Or bake covered at 350 degrees fifteen minutes.

Freeze one month maximum.

Thaw overnight before reheating.