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Cajun Seafood Foils

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This keto-friendly Buttery Cajun Seafood Foils are made with cajun seasonings, shrimp, crab, crawfish, asparagus and zucchini for a perfect seafood bake.

crab claw with shrimp and cajun zucchini squash

The inspiration for these easy keto seafood foil packs came to me after visiting one of my favorite restaurants in Kentucky, the Seafood Lady. There’s nothing better than cajun seafood. I love these buttery cajun foils because clean up is too easy.


seafood with veggies prep

This easy recipe is made with the following ingredients:

  • Tony’s creole seasoning
  • kielbasa sausage
  • zucchini
  • crab
  • shrimp
  • parsley and butter
  • other veggies, such as spaghetti squash or asparagus
foil with seafood veggies and butter


Easy. All you need is sturdy aluminum foil, a large pan and some delicious seafood and cajun spice.

The day before I make my foil packs, I take my shrimp and crab out of the freezer (if frozen).

It should just take a day to thaw out completely and you won’t have to worry about quick thawing later.

If you are in a pinch and have frozen crab and shrimp, allow them to sit in cold water for about an hour or two to thaw out. Simply add them to your foil pack and bake.


best cajun seasonings for seafood?

My favorite seafood seasonings are Tony’s Creole and Old Bay. I frequently use them with calamari.

Either will work, but Tony’s tends to have more spice.

seafood foil packs on the grill?

With summer right around the corner, this is an easy recipe that’ll please your cookout crew.

To make this recipe on the grill, double up on the foil and add to your grill.

Grill until shrimp is pink and ready, about 15-20 minutes on med-high heat.

buttery easy to make crab legs

can I make this recipe with pre-cooked shrimp?

I recommend using fresh, uncooked shrimp. 

However, if you use pre-cooked, add it into the foil packs during the last 5-7 minutes of cooking. Otherwise, it will get overcooked and become too rubbery in texture.

cajun seafood bake with crawfish shrimp lemon

is seafood keto friendly?

Yes, seafood, such as shrimp, crab, and lobster have no carbs and are fine to consume on a low carb or keto diet.

can I make this with frozen packs?

Yes, if you’re making this foil pack from frozen, you can cook in the oven for approximately 30 minutes. 

I recommend cooking for 22-25 minutes if using fresh seafood. 

cajun lemon butter with crab legs and asparagus


  • Andouille, smoked, or summer sausage may be used
  • snow crab, lobster tail or king crab are suitable
  • crawfish, clams or shrimp make great additions
  • cajun seasoning may be swapped for lemon pepper, garlic and smoked paprika 
buttery baked crab in foil


  • This seafood boil leftovers should keep in the refrigerator for up to three days. 
  • Simply reheat in the microwave or oven at 350° F for about eight minutes. 
  • I do not recommend freezing leftovers from this recipe, as it is best when it’s fresh from the oven. 
shrimp crab crawfish seafood foil

best sides for seafood

Instead of potatoes, I use the following for a keto friendly seafood foil

  • spaghetti squash chopped into 1-inch cubes. 
  • asparagus or a healthy, green veggie (like broccoli or zucchini)
keto cajun seafood foil bake

Keto Cajun Seafood Foil Packs

A cajun-inspired shrimp and crab foil so good you’ll think you’re in New Orleans.
4.48 from 17 votes
Print Pin Rate
Course: Main Course
Cuisine: American, Creole
Prep Time: 7 minutes
Cook Time: 20 minutes
Total Time: 27 minutes
Servings: 5
Calories: 607kcal
Author: Amber @ Low Carb Quick


  • 1 lb crab legs
  • 1 lb shrimp uncooked
  • 1 large zucchini
  • 1 kielbasa sausage
  • 2 tbsp parsley
  • 2 tbsp Tonys Creole Seasoning
  • 2 tbsp butter


  • Preheat oven to 420 degrees. Thaw shrimp by placing in cold water, if frozen. Rinse.
  • Place aluminum foil in five separate bowls to create “foil” bowls.
  • Chop kielbasa and zucchini. Add meat and zucchini to form airtight foil “bowls.” Top with parsley and butter. Add Tony’s Creole seasoning.
  • Bake for 30 minutes.


Calories: 607kcal | Carbohydrates: 6g | Protein: 60g | Fat: 33.5g | Saturated Fat: 13.4g | Cholesterol: 404mg | Sodium: 1983mg

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Monday 29th of June 2020

How many carbs or calories are in a lb of crab legs please extreamly new to keto Thank You

Andrea Bixby

Friday 29th of May 2020

Making this tonight! Thank you!

Jessie d

Monday 18th of May 2020

So the crab is already cooked? I'm going to make this tonight and have never used crab legs. Could I take the meat out of the shell?


Tuesday 15th of December 2020

No, keep in shell during cooking. Thaw out if frozen first :) Thanks for stopping by!


Friday 21st of February 2020

Your article doesn’t say when to add the shrimp and crab.


Thursday 27th of February 2020

You'll add them along with everything else at the same time. Thanks for stopping by!

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