Dairy 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 a single drop of dairy anywhere in sight. The star of the show is a bright, herbaceous walnut pesto made entirely from scratch — fresh basil, raw walnuts, garlic, lemon juice, and good olive oil blended into a chunky, fragrant paste that clings beautifully to each trout fillet as it roasts. Traditional pesto often calls for parmesan, but this version skips the cheese entirely and honestly doesn't miss it — the walnuts add richness and body that more than make up for it. Crispy-edged fingerling potatoes and tender green beans round out the pan, all seasoned simply so the pesto gets to be the hero. Everything roasts together in stages so the potatoes get a head start on caramelizing before the fish goes in, which means nothing ends up overcooked or underdone. It's the kind of meal that looks impressive enough for company but comes together on a single pan with minimal cleanup. A squeeze of lemon at the table ties it all together and makes the whole thing sing.
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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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