Low Sugar Pesto-Walnut Trout with Green Beans & Fingerling Potatoes Sheet Pan Dinner
This sheet pan dinner is the kind of weeknight meal that looks like you tried way harder than you actually did. Tender trout fillets get blanketed in a vibrant, chunky walnut-basil pesto made entirely from scratch — no jars, no hidden sweeteners, just fresh basil, raw walnuts, garlic, lemon juice, and good olive oil. Everything roasts together on a single pan alongside crispy-edged fingerling potatoes and blistered green beans, so cleanup is almost as satisfying as the meal itself. For anyone keeping a close eye on added sugars, this recipe is a natural fit — every ingredient is whole and savory, with zero sweeteners sneaking in anywhere. The pesto does double duty as a flavor powerhouse and a moisture barrier, keeping the fish perfectly flaky and rich while the potatoes develop that irresistible golden cut side from the initial roast. A squeeze of lemon at the table brightens everything up and makes the whole dish feel a little fancy without any extra effort. It's the kind of recipe you'll find yourself coming back to on rotation.
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Learn more →Ingredients
4 servings
For the sheet pan
- 1 ½ lb fingerling potatoes, halved lengthwise
- 3 tbsp extra-virgin olive oil, divided
- ¾ tsp kosher salt, divided
- ½ tsp black pepper, divided
- 12 oz green beans, trimmed
- 4 trout fillets (about 6 oz each), skin-on
For the pesto
- 1 cup fresh basil leaves, packed
- ½ cup raw walnuts
- 2 cloves garlic
- ¼ cup extra-virgin olive oil
- 2 tbsp fresh lemon juice
- ¼ tsp kosher salt
For serving
- lemon wedges, for serving (optional)
Instructions
- 1
Position a rack in the center of the oven and preheat to 425°F (220°C). Line an 18×13-inch rimmed sheet pan with parchment paper or foil.
- 2
Toss the halved fingerling potatoes with 2 tablespoons of the olive oil, 1/2 teaspoon of the salt, and 1/4 teaspoon of the pepper directly on the prepared sheet pan. Arrange cut-side down in a single layer. Roast for 15 minutes, until the cut sides begin to turn golden.
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