Gluten Free Pesto-Walnut Trout with Green Beans & Fingerling Potatoes Sheet Pan Dinner
Sheet pan dinners are a weeknight lifesaver, and this one delivers serious flavor without any complicated steps or hard-to-find ingredients. A blender pesto made from fresh basil, raw walnuts, garlic, and lemon juice gets spooned right over the trout fillets before they go into a hot oven — no store-bought sauce needed, which means you stay in full control of every ingredient. That matters when you're navigating labels and trying to avoid hidden gluten that can sneak into pre-made condiments and seasonings. The fingerling potatoes roast cut-side down until golden, the green beans get just enough heat to turn tender with a little color at the tips, and the fish comes out flaky and fragrant at 145°F — all on a single pan. Walnut pesto on trout might sound fancy, but the food processor does the heavy lifting and the whole thing comes together in a logical, staggered sequence that keeps everything finishing at the same time. Bright lemon wedges at the end pull all the flavors together and make it feel like something you'd order at a restaurant.
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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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