Herbed Roasted Brussels Sprouts and Leeks

Salads & Dressings

March 22, 2026

Effortless Elegance: 20-Minute Roasted Brussels Sprouts & Leeks

PREP: 20 minutes | COOK: 20 minutes | YIELD: 7 x ½-cup servings

Who says fast food can’t be fabulous? When you need a side dish that’s both incredibly quick and impressively elegant, this is your new go-to recipe. We’re talking tender, caramelized Brussels sprouts and sweet, mellow leeks, tossed with aromatic herbes de Provence and roasted to perfection. It’s the kind of simple, nourishing dish that elevates any weeknight meal with minimal effort. Ready in just 20 minutes, it’s the perfect partner for almost any main course!

Ingredients

• 1 lb / 454 g Brussels sprouts, trimmed with outer leaves removed, thinly sliced
• 2 large leeks, white and light green parts only, rinsed well, thinly sliced
• 1 Tbsp / 15 ml extra virgin olive oil
• 1 tsp / 5 ml herbes de Provence
• ¼ tsp / 1.25 ml each sea salt and freshly ground black pepper

Instructions

1. Preheat your oven to 425°F / 220°C.
2. On a large baking sheet, combine the sliced Brussels sprouts, leeks, olive oil, herbes de Provence, sea salt, and black pepper.
3. Toss everything together with your hands until the vegetables are evenly coated.
4. Spread the vegetables in a single, even layer to ensure proper caramelization.
5. Roast for 20 minutes, stirring halfway through, until the vegetables are tender and have golden-brown, crispy edges.

Nutritional Information

• Per ½-cup serving
• Calories: 61 | Calories from Fat: 21 | Protein: 3 g | Carbs: 11 g | Total Fat: 2 g | Saturated Fat: 0.3 g | Trans Fat: 0 g | Fiber: 3 g | Sodium: 55 mg | Cholesterol: 0 mg

Pro Tips

• for Perfect Roasting
• Don’t overcrowd the pan. Use a large baking sheet or two smaller ones to ensure the vegetables roast rather than steam, which is key for getting those crispy, caramelized edges.
• To thoroughly clean leeks, slice them first, then place them in a bowl of cold water. Swish them around to dislodge any grit, then lift them out with a slotted spoon, leaving the dirt behind.
• For a finishing touch, drizzle the roasted vegetables with a high-quality balsamic glaze or sprinkle with toasted pine nuts just before serving.
• Slice the Brussels sprouts and leeks to a similar thickness to promote even cooking throughout the roasting time.

FAQ

Q: How can I make this a more complete vegetarian meal
A: To add plant-based protein and make this a satisfying main course, toss in a can of rinsed chickpeas or white beans for the last 10 minutes of roasting. You can also serve it over a bed of quinoa or top with toasted pine nuts or almonds for an extra protein and texture boost.

Q: What can I use instead of herbes de Provence
A: If you don’t have herbes de Provence, you can easily substitute it with 1 teaspoon of dried thyme, or a mix of dried thyme and rosemary. An Italian seasoning blend also works well for a slightly different but equally delicious flavor profile.

Q: Can I make these roasted Brussels sprouts and leeks ahead of time
A: Yes, you can store leftovers in an airtight container in the refrigerator for up to 4 days. For the best texture, reheat them in a 400°F (200°C) oven or an air fryer for 5-7 minutes until they are warmed through and have regained their crispy edges.

Q: Is this recipe vegan and gluten-free
A: Absolutely. This recipe is naturally vegan and gluten-free as written. It uses only plant-based ingredients and contains no gluten, making it a perfect side dish for various dietary needs.

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