Cajun Shrimp Boil Foil Packets for Grill or Oven

Flavor-packed Cajun Shrimp Foil Packets are a mess-free meal that can be cooked on the grill, in the oven, or over a campfire.

Cajun Shrimp and Sausage Foil Packets

I hadn’t tried real Cajun flavors until I moved to Texas, and now they’re one of my favorites. Cajun cooking is bold, vibrant, and often spicy, but it always has depth—smoky paprika, garlic, citrus, and plenty of savory seasoning.

These Cajun Shrimp Foil Packets capture the essence of a shrimp boil—shrimp, sausage, corn, and peppers—without the fuss. Everything steams together in a sealed foil packet so the shrimp stay tender and the vegetables are perfectly cooked. You can prepare them in the oven, on a grill, or over a campfire, making them ideal for weeknight dinners, backyard cookouts, or camping trips.

Prep takes just a few minutes and cook time is about 10–15 minutes. Cleanup is minimal because the food cooks inside the foil—no baking dishes to wash.

Why Cook in Foil?

Foil packets are a convenient way to cook: they lock in juices and flavor, steam food evenly, and require little added oil. They also make cleanup quick and let you cook a full meal on a single sheet of foil. For families or outdoor cooking, foil packets are a reliable, low-stress method.

• No pots or pans to scrub
• Ingredients cook together and absorb each other’s flavors
• Steaming preserves moisture in shrimp and vegetables
• Minimal added fat required
• Fast and portable for grilling or campfires

Ingredients

The following ingredients are what I use for four servings. Adjust quantities to suit your taste or serving size.

• 2 ears corn, cut into 1-inch rounds
• 8 ounces smoked Cajun andouille or similar sausage, sliced 1/4-inch thick
• 1 pound large shrimp, peeled and deveined
• 1 large onion, chopped
• 1 large red bell pepper, chopped
• 1 green bell pepper, chopped
• 2 tablespoons fresh lemon juice
• 2 tablespoons minced garlic
• 2 teaspoons Old Bay seasoning
• 2 teaspoons Cajun seasoning (adjust to taste)
• 1 tablespoon butter (or 1 teaspoon olive oil per packet)
• Aluminum foil for packets

How to Wrap the Foil Packets

Tear off four squares of heavy-duty aluminum foil; each packet uses two sheets for a double layer. Lay two sheets together on a flat surface and divide the shrimp, sausage, corn, and vegetables evenly between the two packet areas.

In a small bowl, whisk lemon juice, minced garlic, Old Bay, and Cajun seasoning. Drizzle the mixture over the shrimp and veggies, then add a pat of butter or a drizzle of olive oil to each packet.

Cover each portion with the second sheet of foil and fold the edges together, rolling them toward the center to seal the packets tightly so steam stays inside while cooking.

Cooking Instructions

These packets can be cooked in three easy ways. Choose the method that fits your plans.

Oven

1. Preheat oven to 425°F (220°C).
2. Place sealed packets on the center rack or a baking sheet.
3. Bake 10–15 minutes, depending on shrimp size and how tender you prefer your vegetables.

Grill

1. Preheat grill to medium-high (about 425°F if using a gas grill).
2. Place packets on the grill with the sealed side up.
3. Cook 12–15 minutes, checking for doneness carefully.

Campfire

1. Place packets on a grate over hot coals rather than directly in the flames for more even heat.
2. Cook about 10 minutes, depending on heat level and packet thickness.

Carefully open the packets to avoid steam burns. Serve warm and garnish with chopped cilantro or parsley if desired. Store leftovers in an airtight container in the refrigerator and reheat gently.

Prep Tips

• Cut ingredients into similar-sized pieces so everything cooks evenly. Break corn into smaller rounds if needed.
• Check seasoning blends for salt content before adding extra salt—many Cajun blends contain salt already.
• If you like more heat, increase the Cajun seasoning or add a pinch of cayenne.

Frequently Asked Questions

What does Cajun seasoning taste like?

Cajun seasoning is bold and often pepper-forward, with paprika, garlic, onion, and a mix of spices that can range from mildly spicy to quite hot. In this recipe, Cajun seasoning combined with Old Bay, lemon, and garlic creates a bright, savory sauce that complements shrimp and sausage.

Is this recipe gluten-free?

Yes—this dish contains no grains or flour. If you have a gluten sensitivity, check the labels on packaged ingredients like sausage and seasoning blends to confirm they are gluten-free.

Printable Recipe Summary

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