Name: Grilled Swai & Asparagus Foil Packets
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Yield: 4
Cuisine: US
Ingredients: Cooking spray; 1 stick butter, divided; 1 bunch fresh asparagus, trimmed and cut into bite-sized pieces; 0.5 onion, thinly sliced; 1 tablespoon dried dill weed; 1 pinch onion and herb seasoning blend (such as Mrs. Dash®); 4 (4 ounce) fillets swai fish; 2 lemons, thinly sliced; Lemon wedges, for serving

Fish

Grilled Swai and Asparagus Packets

Aug 27, 2025
by Abby Wunsch
- 5.0 / 5 ( 2 Ratings)
1 Likes

PREP TIME

20 mins
COOK TIME

25 mins
TOTAL TIME

45 mins
SERVING

4 People
VIEWS

6

Delight in the simplicity and flavor of these grilled swai and asparagus packets. A complete meal sealed in foil, offering tender, flaky fish and perfectly seasoned vegetables with virtually no cleanup. Customize your spices and herbs for a dish that's uniquely yours!

Ingridients

Adjust Servings

Cooking spray

1 stick butter, divided

1 bunch fresh asparagus, trimmed and cut into bite-sized pieces

0.5 onion, thinly sliced

1 tablespoon dried dill weed

1 pinch onion and herb seasoning blend (such as Mrs. Dash®)

4 (4 ounce) fillets swai fish

2 lemons, thinly sliced

Lemon wedges, for serving

Nutrition

Carbohydrate

15 g
Cholesterol

114 mg
Fiber

7 g
Protein

21 g
Saturated Fat

17 g
Sodium

230 mg
Sugar

3 g
Fat

32 g
Unsaturated Fat

0 g

Follow The Directions

01

Step

Preheat an outdoor grill for medium heat. Tear off 4 large squares of aluminum foil; coat with cooking spray. (5 minutes)

02

Step

Melt ⅓ stick butter in a skillet over medium heat. Toss asparagus, onion, dill, and 1 pinch seasoning blend with melted butter; divide among the foil squares. (10 minutes)

03

Step

Top vegetables with swai fillets. Cut remaining ⅔ stick butter into small pats; divide and place onto each fillet. Sprinkle liberally with seasoning blend; place lemon slices on top. Fold foil into packets, sealing seams tightly, leaving room for steam to circulate. (10 minutes)

04

Step

Place packets directly on the grill; cook until swai flakes easily with a fork, 20 to 25 minutes. Open packets carefully; squeeze lemon juice over swai and vegetables. (25 minutes)

For enhanced flavor, marinate the swai fillets in lemon juice, olive oil, and garlic for 30 minutes before assembling the packets.
Feel free to add other vegetables such as bell peppers, zucchini, or cherry tomatoes to the packets.
Ensure the foil packets are tightly sealed to trap steam and cook the fish evenly.

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Abby Wunsch

Written by

Our recipe authors are passionate food lovers who share thousands of diverse dishes from around the world. They bring daily cooking inspiration with delicious, easy-to-make recipes for every occasion.