Baked Rainbow Trout Recipe
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This fool-proof recipe for baked rainbow trout takes just 20 minutes. It’s a great way to serve a healthy dinner with terrific flavors of lemon, garlic, and herbs—but minimal effort.
If you’d like to add some variety to the usual dinner rotation, an easy baked fish recipe is the way to do it! This is so simple to make and totally fool-proof when made in the oven. We often do salmon and I’ve added a few tilapia recipes to my repertoire, but rainbow trout is a great complement to these. It’s tender, easy to cook, and mild in flavor.
Rainbow trout also gets good marks for environmental impact and sustainability when farmed in the US in freshwater net pens, outdoor flow-through raceways, and ponds, according to the Monterey Bay Aquarium’s Seafood Guide. Always good to know!
Why You’ll Love This Baked Trout Recipe
- Exceptionally quick and easy—about 20 minutes total to prep and to bake
- The fish comes out tender and flaky every time
- Classic garlic, lemon, and herb flavors go with a wide variety of sides
- A healthy and nourishing main course always brings a certain satisfaction!
Ingredient Notes
Ingredient Spotlight: Rainbow Trout
Rainbow trout is a popular cold-water freshwater and coastal fish that is mild in taste and chock full of protein, healthy fats, vitamins, and minerals. According to USDA figures, a 4-ounce trout fillet contains about 23 grams of protein, which is equivalent to a comparable serving of salmon. It’s also a terrific source of the brain- and heart-healthy omega-3 fatty acids we all need.
Farm-raised trout typically has a much higher fat content than wild-caught trout—surviving in the wild makes a fish lean and mean!—which is worth bearing in mind if that’s something you watch. And as a bonus, this preparation is obviously naturally gluten-free and low-carb.
How To Prepare Rainbow Trout
Rainbow trout can be prepared any number of ways, but I love the ease of baking. It requires the least prep or clean up and delivers a very reliable result!
Remove trout fillets from the fridge as a very first step. They should already be thawed. Let sit at room temperature for a few minutes while you preheat the oven to 400°F and gather your other ingredients: lemon slices, garlic, olive oil, salt, pepper, and fresh herbs. Taking the edge off the fridge chill helps them to bake more evenly.
Place trout on a rimmed baking sheet, skin side down. I highly recommend lining the pan with parchment paper for ease of cleaning.
Why trout with skin?
Cooking rainbow trout and other types of fish with their skin makes the pieces easier to cook in one piece and helps them retain moisture so that they are tender and flaky even when cooked to a safe internal temperature. I only prefer skinless fillets when making fish tacos, since then you will want to break it up into pieces.
You can eat the skin, as well. It’s rich in nutrients, and the skin of rainbow trout in particular is very delicate and light. Try a bite!
Season lightly. Brush gently with olive oil, then sprinkle salt, pepper, and minced garlic on top. Place a thinly-cut lemon slice on top of each piece.
Bake and relax! That’s truly all the prep these require.
Know when they’re done. You’ll know the fish is fully cooked when the fillets are opaque rather than somewhat translucent. They also should flake easily when pressed a bit with the tines or side of a fork, which you can see visually in the photo below. If you have an instant read thermometer, they should reach an internal temperature of 145°F.
Serve with an extra spritz of fresh lemon juice and all the herbs your heart desires.
Variations & Grill Option
Alter or add to the seasoning. You can incorporate a sprinkle of red pepper flakes for a little kick, a dusting of sweet or smoky paprika for an extra hint of sweet or smoky flavor, or completely swap the garlic and lemon slices for your favorite seafood seasoning blend, dry rub, or pre-packaged lemon pepper seasoning.
Cook on the grill as a foil packet. You can enjoy the same ease and tender result of oven-baking if you wrap the seasoned trout fully in aluminum foil, seal tightly, and cook on the grill over medium-high heat for 15-20 minutes. Delicious!
What goes well with rainbow trout?
Rainbow trout pairs well with a wide variety of vegetables, salads, and grains. Some of our favorite side dish combinations:
- Roasted green beans, broccolini, or asparagus. Pop these on the same pan as the trout and roast at the same time for a super easy sheet pan meal.
- A bed of sautéed spinach. This makes a truly restaurant-worthy presentation.
- Wild rice, brown rice, white rice, or couscous.
- Roasted red potatoes.
- Steamed veggies. Keep steam-in-bag veggies + fish fillets in the freezer and you will always have the makings of an ultra-easy, healthy dinner.
More Easy Fish Recipes
Fish is such a heart-healthy choice and a great way to add variety to the average family diet. Try also incorporating easy salmon recipes like this mustard-crusted or lemon herb salmon. Baked lemon butter or blackened tilapia are another pair of my favorites.
Rainbow Trout Recipe
Ingredients
- 4 fillets rainbow trout
- 1 Tablespoon olive oil
- 2 cloves garlic minced
- kosher salt and black pepper
- 1/2 lemon sliced
- 2-3 Tablespoons fresh herbs try either a mix of parsley and dill, or a mix of rosemary, oregano, and thyme
Instructions
- Remove trout from the fridge. Pat dry on both sides with a clean kitchen cloth or paper towel.4 fillets rainbow trout
- Preheat oven to 400°F. Line a rimmed baking sheet with parchment paper and place trout in the middle, skin side down.
- Gently brush each piece with olive oil, then sprinkle evenly with minced garlic and about 1/2 teaspoon each of salt and pepper. Arrange lemon slices over the top.1 Tablespoon olive oil, 2 cloves garlic, kosher salt and black pepper, 1/2 lemon
- Bake for 10-15 minutes. When done, it should be opaque and flake easily when pressed with a fork. If using an instant-read thermometer, it should near or reach 145°F.
- Remove and serve quickly with extra lemon slices and fresh herbs sprinkled generously on top. Enjoy!2-3 Tablespoons fresh herbs
Notes
- Fish: Look for trout that has been responsibly farmed or caught in the US, if possible, ideally with the skin still on. Cooking rainbow trout and other types of fish with their skin makes the pieces easier to cook in one piece and helps them retain moisture so that they are tender and flaky even when cooked to a safe internal temperature.
- Herbs: I like to use either a tangy mix of parsley and dill, or a more Italian-inspired blend of rosemary, oregano, and thyme. Use whatever you have on hand, or what seems to go best with your sides. You can’t go wrong.
- Option to Grill: You can enjoy the same ease and tender result of oven-baking if you wrap the seasoned trout fully in aluminum foil, seal tightly, and cook on the grill over medium-high heat for 15-20 minutes. Delicious!
Nutrition Estimate
This post was originally published on January 9, 2023 and has been updated with more specific and streamlined information about how to shop for and season rainbow trout. The recipe is unchanged.
