Grilled Cajun Seafood Packets

Category: Family Dinner Ideas

This summertime favorite combines succulent shrimp, sweet corn, baby potatoes, and smoky Andouille sausage in convenient foil packets. The ingredients are partially pre-cooked, then tossed with melted butter and Old Bay seasoning before being sealed in foil packets and grilled to perfection. The result is a complete, flavor-packed meal with minimal cleanup that's perfect for outdoor gatherings or weeknight dinners.

The packets create a steaming environment that infuses everything with the classic Cajun-inspired flavors while keeping the seafood tender and juicy. Garnish with fresh lemon and parsley for a bright finish to this crowd-pleasing dish.

Fatiha
By Fatiha Fatiha
Last updated Wed, 15 Oct 2025 15:56:10 GMT
A plate of shrimp, corn, potatoes, and smoked sausage. Pin
A plate of shrimp, corn, potatoes, and smoked sausage. | zestplate.com

This Southern-inspired grilled shrimp boil packet has been my summer entertaining secret for years. Each foil packet delivers a perfect blend of tender potatoes, sweet corn, succulent shrimp and smoky Andouille sausage, all infused with classic Old Bay seasoning. When the weather turns warm, nothing brings people together like these easy, flavorful seafood packets.

I first created these shrimp boil packets when hosting a lakeside family reunion. Everyone was so impressed by the individual servings and intense flavors that it's now requested at every summer gathering. My nephew even learned to eat seafood through these packets.

Ingredients

  • Baby potatoes: cut into bite sized chunks provide the hearty base. Look for firm potatoes with smooth skin for best results
  • Fresh corn on the cob: delivers natural sweetness. Choose ears with bright green husks and golden silk for maximum flavor
  • Raw shrimp: should be plump and translucent. Pat them dry before adding to ensure proper cooking
  • Andouille smoked sausage: adds smoky depth. Authentic Cajun varieties offer the most authentic flavor profile
  • Yellow onion: sweetens as it cooks. Choose firm onions with no soft spots
  • Fresh garlic cloves: provide aromatic punch. Mince just before using for strongest flavor
  • Unsalted butter: creates a luxurious sauce. Use high quality European style for richness
  • Old Bay seasoning: delivers classic seafood boil flavor. The fresher your seasoning the more vibrant the taste
  • Fresh lemon and parsley: brighten the finished dish. Select lemons that feel heavy for their size

How To Make Grilled Shrimp Boil Packets

Prepare the grill:
Heat your grill to 400°F. This high temperature ensures the packets cook quickly and evenly. While waiting for the grill to reach temperature arrange four large sheets of heavy duty aluminum foil on your work surface. Regular foil can tear so heavy duty is essential for this recipe.
Parboil the starchy vegetables:
Bring a large pot of water to a rolling boil then add your potato chunks and corn rounds. Simmer them for exactly 10 minutes which partially cooks these denser ingredients without making them mushy. Drain thoroughly as excess water will create steam and prevent proper caramelization.
Season the mixture:
In a spacious mixing bowl combine your parboiled vegetables with raw shrimp sausage pieces sliced onion and minced garlic. Pour melted butter over everything then sprinkle with salt pepper and Old Bay seasoning. Toss gently until every piece is glistening with seasoned butter. This ensures flavor penetrates all components evenly.
Create secure packets:
Divide your seasoned mixture equally among the four foil sheets. Bring opposite edges of foil together above the food and fold down several times creating a tight seal. Then fold the remaining open edges inward to form completely enclosed packets. Proper sealing traps moisture and allows for steam circulation.
Grill to perfection:
Place sealed packets directly on hot grill grates and cook for 15 minutes turning once halfway through. Listen for the satisfying sizzle which indicates proper cooking temperature. The packets will puff slightly as steam builds inside cooking everything to perfect doneness.
Serve with flair:
Carefully open each packet being mindful of escaping steam which can cause burns. Transfer contents to individual plates or serve directly in the opened foil for a rustic presentation. Garnish with fresh lemon slices and chopped parsley which adds bright color and fresh flavor.

The Old Bay seasoning is truly the secret weapon in this recipe. My grandfather worked on fishing boats in the Chesapeake Bay area and taught me that authentic Old Bay transforms simple seafood into something extraordinary. We used to make this recipe during our annual beach trips and the familiar aroma instantly transports me back to those carefree summer evenings.

Perfect Pairings

These grilled seafood packets are substantial enough to stand alone as a complete meal but pair wonderfully with simple sides. A crisp green salad dressed with light vinaigrette offers refreshing contrast to the rich buttery seafood. Crusty French bread serves perfectly for soaking up the flavorful sauce that collects in each packet. For beverages consider a cold pilsner beer or crisp Sauvignon Blanc which complement the savory profile without overwhelming the delicate shrimp.

A dish of shrimp, corn, potatoes, and smoked sausage.
A dish of shrimp, corn, potatoes, and smoked sausage. | zestplate.com

Make Ahead Tips

This recipe shines for entertaining because so much can be prepared in advance. You can parboil the potatoes and corn up to one day ahead keep them refrigerated in an airtight container. The foil packets can be assembled up to four hours before cooking just store them in the refrigerator until ready to grill. For camping trips prepare the packets at home keep them in a cooler and grill onsite for an impressive outdoor meal with minimal effort. The flavors actually improve slightly with some resting time as the seasonings penetrate the ingredients.

Ingredient Substitutions

While traditional ingredients create authentic flavor this recipe adapts beautifully to what you have available. Kielbasa or chorizo make excellent alternatives to Andouille sausage though each brings its own distinctive flavor profile. Frozen corn kernels can replace fresh corn on the cob when needed just scatter a generous half cup over each packet. Red potatoes substitute perfectly for baby potatoes with identical cooking time. For those avoiding shellfish chunks of firm white fish or even chicken thighs work well though cooking times may need adjustment. Cajun seasoning can stand in for Old Bay in a pinch.

A dish of shrimp, corn, potatoes, and smoked sausage.
A dish of shrimp, corn, potatoes, and smoked sausage. | zestplate.com

Recipe FAQs

→ Can I make these shrimp boil packets in the oven instead of on a grill?

Yes! Preheat your oven to 400°F (204°C) and place the sealed foil packets on a baking sheet. Bake for 15-18 minutes until the shrimp is pink and cooked through. The result will be very similar to the grilled version.

→ What can I substitute for Andouille sausage?

If Andouille isn't available, you can substitute kielbasa, chorizo, or any smoked sausage. Each will provide a different flavor profile but will work well with the other ingredients and seasonings.

→ Can I prepare these packets ahead of time?

You can assemble the packets up to 4 hours before cooking and refrigerate them. However, it's best not to prepare them too far in advance as raw shrimp shouldn't be mixed with other ingredients for extended periods. Remove from the refrigerator 15-20 minutes before grilling.

→ How do I know when the shrimp are cooked properly?

Shrimp are cooked when they turn completely pink and opaque with a slightly firm texture. They should form a loose 'C' shape when perfectly cooked. If they curl into a tight 'O' shape, they may be overcooked.

→ What sides go well with these shrimp boil packets?

These packets are essentially a complete meal, but they pair wonderfully with cornbread, coleslaw, a simple green salad, or garlic bread for soaking up the flavorful juices that collect in the packets.

→ Can I adjust the spice level of this dish?

Absolutely! Adjust the amount of Old Bay seasoning to your preference. For more heat, add cayenne pepper or hot sauce. For a milder version, reduce the Old Bay and add more butter and a squeeze of lemon juice.

Cajun Shrimp Boil Packets

Delicious foil packets filled with shrimp, corn, potatoes and Andouille sausage, seasoned with Old Bay and grilled to juicy perfection.

Preparation Time
15 min
Cooking Time
25 min
Total Duration
40 min
By Fatiha: Fatiha

Category: Main Dishes

Skill Level: Intermediate

Cuisine: Cajun

Output: 4 Servings (4 foil packets)

Dietary Preferences: Gluten-Free

Ingredients

→ Main Ingredients

01 450 grams baby potatoes, cut into 4 centimeter cubes
02 2 ears corn on the cob, cleaned and each ear cut into 5 to 6 rounds
03 450 grams raw shrimp, thawed, peeled and deveined
04 340 grams Andouille smoked sausage, cut into 5 centimeter pieces
05 1 small yellow onion, thinly sliced
06 4 cloves garlic, minced

→ Seasonings and Finishing

07 60 milliliters unsalted butter, melted
08 5 milliliters salt
09 2.5 milliliters freshly ground black pepper
10 30 milliliters Old Bay seasoning
11 Lemon slices for garnish
12 Chopped fresh parsley for garnish

Directions

Step 01

Bring the grill to 204°C and arrange four sheets of heavy duty aluminium foil, each measuring 30 by 30 centimeters.

Step 02

Pour 2 liters of water into a large pot and set over high heat. Once boiling add potatoes and corn rounds. Simmer gently for 10 minutes then drain thoroughly.

Step 03

Combine drained potatoes, corn, shrimp, sausage, sliced onion and minced garlic in a large mixing bowl.

Step 04

Pour melted butter over the contents, then sprinkle with salt, pepper and Old Bay seasoning. Toss well to ensure all pieces are evenly coated.

Step 05

Portion the seasoned mixture evenly among the four prepared foil sheets. Bring the edges together and fold tightly to create secure sealed packets.

Step 06

Position the foil packets directly on the hot grill grate. Cook for 15 minutes turning each packet once halfway through to achieve uniform heat.

Step 07

Open packets with caution to avoid escaping steam. Garnish with lemon slices and chopped fresh parsley before presenting.

Notes

  1. This classic seafood boil is conveniently prepared in foil packets, allowing flavors to meld while cooking on the grill.
  2. For even cooking, ensure all ingredients are cut to similar sizes.

Required Equipment

  • Grill
  • Heavy-duty aluminum foil
  • Large pot
  • Large mixing bowl

Allergen Information

Review each component for possible allergens and consult a health professional when concerned.
  • Shellfish (shrimp)
  • Dairy (butter)

Nutritional Information (per serving)

These figures serve as estimates and are not a substitute for medical advice.
  • Calories: 485
  • Fat: 26.8 g
  • Carbohydrates: 32.5 g
  • Protein: 34.2 g