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Parmesan-Crusted Trout

Parmesan-Crusted Trout

with Scallion Mashed Sweet Potatoes & Pattypan Squash
4.5(115)39 Reviews
Recipe Development Team
Recipe Development TeamUpdated on June 01, 2026
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Calories
1000 kcal
Protein
36g protein
Total
35 minutes
Difficulty
Medium
Allergens:
  • Milk
  • Fish
  • Eggs
  • Wheat
  • Tree Nuts

If you’re like us, you’ll sign up for just about anything Parmesan-crusted! Who can resist a tender, flaky trout fillet spread with savory garlic-Dijon sauce and coated in a panko-Parm-scallion crust that toasts to a crisp golden brown in the oven? Serve this formidable fish with two colorful sides: creamy scallion-studded mashed sweet potatoes and nutty pattypan squash, sautéed in butter with almonds until they turn golden. This is one of our most sumptuous, bistro-worthy dinner ideas yet—yours for the taking any night of the week!

Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
Serving amount

1.5 tablespoon

Sour Cream

(Contains: Milk)

2 unit

Sweet Potato

10 ounce

Steelhead Trout

(Contains: Fish)

3 tablespoon

Parmesan Cheese

(Contains: Milk)

8 ounce

Pattypan Squash

2 tablespoon

Mayonnaise

(Contains: Eggs)

¼ cup

Panko Breadcrumbs

(Contains: Wheat)

2 unit

Scallions

2 teaspoon

Dijon Mustard

1 teaspoon

Garlic Powder

½ ounce

Sliced Almonds

(Contains: Tree Nuts)

Not included in your delivery

½ teaspoon (tsp)

Sugar

2 teaspoon (tsp)

Cooking Oil

3 tablespoon (tbsp)

Butter

(Contains: Milk)

teaspoon (tsp)

Salt

teaspoon (tsp)

Black Pepper

per serving
Calories1000 kcal
Fat73 g
Saturated Fat25 g
Carbohydrate52 g
Sugar13 g
Dietary Fiber8 g
Protein36 g
Cholesterol170 mg
Sodium570 mg
Trans Fat0.5 g
Potassium1390 mg
Calcium220 mg
Iron2.1 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Peeler
Medium Pot
Strainer
Small Bowl
Large Pan
Paper Towel
Baking Sheet
Potato Masher

Cooking Steps

Cook Sweet Potatoes
1
  • Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce.

  • Peel and dice sweet potatoes into ½-inch pieces; transfer to a medium pot with enough salted water to cover by 2 inches.

  • Bring to a boil and cook until tender, 15-20 minutes. Reserve ½ cup sweet potato cooking liquid, then drain and return sweet potatoes to pot. Keep covered off heat until ready to mash.

Prep & Make Sauce
2
  • While sweet potatoes cook, trim and finely chop scallion greens (save whites for another use). Quarter pattypan squash lengthwise.

  • In a small bowl, combine mayonnaise, mustard, half the garlic powder (you’ll use the rest in the next step), and ½ tsp sugar (1 tsp for 4 servings). Season with salt and pepper. Transfer 2 TBSP sauce (4 TBSP for 4) to a separate small bowl; reserve for serving.

Make Crust
3
  • Melt 1 TBSP butter (2 TBSP for 4 servings) in a large pan over medium-high heat. Add panko and toast, stirring, until golden and fragrant, 2-3 minutes.

  • Turn off heat; transfer to a shallow dish and stir in Parmesan, half the scallion greens, remaining garlic powder, and a pinch of salt and pepper. Wipe out pan.

Roast Trout
4
  • Pat trout* dry with paper towels; season with salt and pepper. Drizzle skin sides with oil; rub to coat.

  • Place trout, skin sides down, on a baking sheet. (TIP: Line with aluminum foil first for easy cleanup.) Evenly spread tops with 1 tsp sauce each; mound with panko mixture, pressing firmly to adhere.

  • Roast on top rack until trout is cooked through and cheese melts, 10-12 minutes.

Cook Pattypan Squash
5
  • Meanwhile, heat 1½ tablespoons cooking oil (3 TBSP for 4 servings) in a large sauté pan over medium-high heat. Add squash to hot pan. Cook 4-5 minutes, or until squash is lightly browned and tender, stirring occasionally.

  • Remove from heat; stir in almonds and 1 TBSP butter (2 TBSP for 4 servings). Continue to stir until butter is melted and almonds are golden, 30-60 seconds. (TIP: Return pan to low heat if needed to melt butter.) Cover to keep warm.

Finish Sauce & Potatoes
6
  • While squash cooks, to bowl with reserved sauce, add water 1 tsp at a time until mixture reaches a drizzling consistency.

  • To pot with sweet potatoes, add sour cream, 1 TBSP butter (2 TBSP for 4 servings), and a big pinch of salt. Mash until smooth, adding splashes of reserved sweet potato cooking liquid as needed.

  • Stir in remaining scallion greens; taste and season with salt and pepper.

Serve
7
  • Divide trout, mashed sweet potatoes, and pattypan squash between plates. Top trout with reserved sauce and serve.

Customer reviews

Review summary

Updated on Dec 2025
  • Flavor: Many loved the Parmesan crust on the trout, calling it "amazing" and "delicious." Some found the pattypan squash bitter or bland.
  • Ease of prep: A few noted confusion with the recipe instructions, particularly regarding sauce preparation and scallion usage.
  • Suggestions: Consider drizzling honey on the squash for extra flavor. Adjust salt in sweet potatoes to taste.
  • Portions: Some felt the meal could have been more filling; a larger portion would make it perfect.
  • Texture: The Parmesan crust was praised, but a few found it made detecting fish bones challenging.
AI-generated from customer reviews

Reviews from our home cooks

K
Karen JohnsonCooked for 2 people
|Sep 17, 2025

The trout was a bit fishier than we've gotten before. Didn't care for the bitterness of the pattypan squash, and it didn't mesh well with the sweet potato taste. Did really like the parmesan crust.

K
Kelly SedoryCooked for 4 people
|Sep 12, 2025

Please proofread the recipe. We found missing words in sentences that just added to our confusion. Receipt said "use the remainder of sauce", but nowhere before that did it say what "the sauce" was. Very confusing. You told us to chop the scallions dividing the green from the white. You never suggested if we should use the white scallions. Was that an error?

A
Amy ScarfoneCooked for 2 people
|Sep 11, 2025

Delicious!!! Every element of this dish is fantastic. Also, thanks for increasing the font size on the recipe cards!

K
Kristi GrantCooked for 2 people
|Sep 12, 2025

Great recipe! Will add to my favorites. All ingredients were fresh and well portioned!

N
Nancy ShanteauCooked for 2 people
|Sep 22, 2025

This dish was outstanding! I really liked the crust, but everything was so good

M
Maria CookCooked for 2 people
|Sep 12, 2025

Delicious great flavors & textures. Trout was amazing. But no almonds!

C
Carolyn WaelderCooked for 2 people
|Sep 18, 2025

Your chefs are so clever. The sauce is a must. Great dish!!

D
Deborah WilsonCooked for 2 people
|Sep 11, 2025

This was the most elegant and tasty meal from Hello Fresh ever!!!!

T
Trina SouthallCooked for 2 people
|Sep 16, 2025

We were still hungry. A larger portion would make this perfect!

E
Emma NeaveCooked for 2 people
|Oct 11, 2025

These squash were phenomenal but the trout was the standout. So yummy.

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