Easy Instant Pot Zesty Herbed Fish in 15 Minutes

Dinner, Seafood

March 29, 2026

The Easiest, Most Flavorful Fish You’ll Ever Make!

Tired of dry, boring fish? Say hello to your new weeknight hero! This Zesty and Herbed Fish recipe is a game-changer, delivering a perfectly moist, flaky, and aromatic fillet in just 15 minutes, thanks to the magic of the Instant Pot. We’re using the classic ‘en papillote’ method—wrapping the fish in a parchment packet—to lock in all the incredible flavors of fresh herbs, zesty lime, and a touch of Dijon. It’s a healthy, low-carb, and ridiculously easy meal that tastes like it came from a gourmet kitchen. The best part? Cleanup is an absolute breeze!

Ingredients

• 1 4-ounce / 113g firm white fish fillet (like cod, halibut, or tilapia)
• 1 fresh rosemary sprig
• 1 fresh thyme sprig
• 1 tbsp. chopped fresh basil
• 2 tsp lime zest
• 1 tbsp. fresh lime juice
• 1 tbsp. olive oil
• 1 tsp Dijon mustard
• ¼ tsp garlic powder
• Pinch of salt, to taste
• Pinch of black pepper, to taste
• 1 ½ cups / 355ml water

Instructions

1. Directions
2. Pour 1 ½ cups of water into the inner pot of your Instant Pot and place the trivet or steamer basket inside.
3. Pat the fish fillet dry with a paper towel and season both sides with salt and pepper. Place it in the center of a large piece of parchment paper.
4. In a small bowl, whisk together the olive oil, lime juice, Dijon mustard, and garlic powder to create a zesty marinade.
5. Sprinkle the lime zest directly onto the fish, then brush the marinade evenly over the top of the fillet.
6. Top the fish with the fresh rosemary sprig, thyme sprig, and chopped basil.
7. Create a packet by folding the parchment paper over the fish. Crimp the edges together tightly to create a secure seal.
8. For an extra layer of security and easier handling, wrap the entire parchment packet in a sheet of aluminum foil.
9. Place the foil-wrapped packet onto the trivet inside the Instant Pot.
10. Secure the lid, set the steam release valve to ‘Sealing’, and cook on HIGH pressure for 5 minutes.
11. Once the timer finishes, perform a quick pressure release by carefully turning the valve to ‘Venting’.
12. Using tongs, carefully remove the hot packet. Unwrap the foil and parchment, and serve the fish immediately, drizzling any juices from the packet over the top.

Nutritional Information

• Per Serving: Calories 250 | Total Fats 10g | Net Carbs 1g | Protein 30g | Fiber 0g

Pro Tips

• for Perfect Fish
• Use a firm, white fish fillet about 1-inch thick, such as cod, halibut, or sea bass. This thickness helps it cook perfectly without drying out.
• Don’t skip the double wrap! The parchment paper protects the fish and infuses flavor, while the outer foil ensures the packet stays sealed and is easy to lift out.
• Feel free to swap the herbs based on what you have. Fresh dill, parsley, or oregano would also be delicious with the zesty lime marinade.
• Serve this flavorful fish over a bed of quinoa, couscous, or with a side of steamed asparagus for a complete, healthy meal.

FAQ

Q: What kind of fish is best for this Instant Pot recipe
A: Firm, white fish fillets that are about 1-inch thick work best. Excellent choices include cod, halibut, sea bass, or tilapia because they stay moist and hold their shape well under pressure.

Q: Can I use different herbs or citrus in this recipe
A: Absolutely! Feel free to swap the lime for lemon and the herbs for what you have on hand. Fresh dill, parsley, or oregano would also be delicious with the zesty marinade.

Q: Is wrapping the fish in both parchment and foil necessary
A: Yes, this double-wrap method is key. The inner parchment paper steams the fish perfectly (the ‘en papillote’ method), while the outer foil ensures the packet stays sealed and is easy to lift out of the hot Instant Pot.

Q: What can I serve with this zesty herbed fish
A: This versatile fish pairs well with many sides. For a complete and healthy meal, serve it over a bed of quinoa, couscous, or alongside steamed vegetables like asparagus or broccoli.

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