
Leeks are one of those vegetables that transform completely under high heat — what starts out mild and a little grassy becomes sweet, silky, and deeply caramelized at the edges. This simple roasted preparation lets that natural sweetness shine, finished with a bright squeeze of fresh lemon and a drizzle of good olive oil that ties everything together beautifully. The whole dish comes together with just a handful of pantry staples, and every single one of them is completely plant-based without any substitutions or workarounds needed. That's the beauty of a recipe built around honest, whole ingredients from the start. A scatter of fresh flat-leaf parsley at the end adds a pop of color and a herby lift that makes it feel genuinely elegant on the plate. Serve it as a stunning side alongside grains or legumes, or let it be the quiet star of a simple weeknight spread.
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Preheat the oven to 425°F (220°C). Line a large baking sheet with parchment paper.
Trim the root ends and dark-green tops from the leeks, leaving only the white and light-green parts. Halve each leek lengthwise, then rinse under cold running water, fanning the layers to remove any grit. Pat thoroughly dry with paper towels.
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