Grilled Rainbow Trout Fillet Recipe with Lemon in Foil

Rainbow Trout with Lemon Grill Pouches
Serves 4
Delicious summertime flavors in a pouch! This can be done with any fish you like just adjust the cooking time accordingly. To prepare in the oven instead of the grill, make up the packets and preheat the oven to 400. Bake for about 15-20 minutes or until opaque and flaky.
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Prep Time
20 min
Cook Time
10 min
Prep Time
20 min
Cook Time
10 min
  1. Rainbow Trout Filets - 4-6 (You can adjust for 1 packet per person if more people will be eating)
  2. Lemons - 2 (Enough for 2 slices in each packet)
  3. Fresh Thyme - 2-3 Sprigs in Each Packet
  4. Olive Oil - 1 Teaspoon in Each Packet
  5. Salt & Pepper - Pinch of Each In Each Packet
  6. Aluminum Foil - 1 Large Piece for Each Packet
Clean Cooking
Pre-heat your grill (If you have the option heat up one side and leave the other side on low so the fish can have indirect heat)

Make a piece of aluminum foil big enough to be wrapped into a packet very securely for each of your filets.

Place a filet skin side down on the aluminum foil and drizzle with the olive oil. Add a pinch of salt and pepper, 2 thin slices of lemon, and 2-3 sprigs of thyme on top of the filet as above.

Wrap the foil over the filet and fold down tucking under the edges to make a rectangular packet.

Place the packets over indirect heat on the grill (or in the coolest zone) and cook for 4-5 minutes on each side.

Once they have cooked pull one packet off and check that it is opaque and flaky. I chose to open the packet on the plate at the table because it’s easiest.


How To Grill Rainbow Trout in Foil

We are here in the Sunshine State of Florida where the weather never changes. What exactly does that mean? We can use the grill all year long, that’s what! Prior to making this I had only had rainbow trout in restaurants before, however, I actually found rainbow trout fillets in my grocery store and figured I would try it. I love it in the restaurants so I thought “I have to be able to do this at home”. I was right! We were grilling rainbow trout fillet and these turned out beautiful and delicious and it was oh so super ridiculously simple because you grill rainbow trout in foil pouches with lemon and herbs.

While I was grilling the hubby and little man were enjoying the pool and the sun with me. We love an impromptu cookout. We invited my in-laws and a couple friends and had a wonderful day of it. Thanks fish sale at the grocery store! My mother in law really liked this fish and only one of the rainbow trout fillet packets burned (oops too much fun, not enough grill tending).

I will warn that rainbow trout fillet are particularly thin as compared to the other fishes I’ve used this method with so it takes a little less time with these. You can use this method for any type of fish though! It’s fantastic with tilapia, cod, salmon, whatever you find that’s affordable and your family likes. These packets can also be baked in the oven if you don’t have an outdoor grill or you live somewhere that actually has a winter (I miss seasons *sad trumpets*). If doing this in the oven I would pre-heat to 400 and let them bake about 15-20 minutes. Pull one and check it for yummy flakiness and you’re good!

I love that this recipe does give me lovely summertime feelings any time of the year! Also, an amazing side to this fish are my Grilled Vegetables, skewered to perfection, check them out!



  1. Debra Worth

    What a neat way to cook without heating up the kitchen. Course, I am in Maryland and it is freezing out right now so I don’t mind using the stove but I want to try this when the weather starts to get warm again.

    1. Author

      Stay warm in Maryland! It would be just as simple in the oven, preheat to 400 degrees and I would cook them for 15-20 minutes depending on the size of your fillets 🙂

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