Roasted Fennel with Fennel Seed and Parmesan

High-heat roasting caramelizes the natural sugars in the fennel bulb, mellowing its raw licorice edge into something sweet and nutty, while toasted and crushed fennel seed doubles down on the vegetable's own anise notes for a more concentrated flavor than the bulb alone can deliver.
- Prep
- 15 min
- Cook
- 35 min
- Total
- 50 min
- Servings
- 4
Ingredients
- 2 large bulbs fennel bulbs, trimmed
- 3 tbsp olive oil
- 1 tsp fennel seeds, toasted and lightly crushed
- 1/2 tsp kosher salt
- 1/4 tsp black pepper, freshly ground
- 1 lemon, zested lemon zest
- 1/3 cup Parmesan cheese, finely grated
- 2 tbsp fresh fennel fronds, chopped, for garnish
Nutrition per serving
- Calories
- 182
- Protein
- 5g
- Carbs
- 13g
- Fat
- 13g
Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.
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Instructions
- 1Preheat the oven to 425°F (220°C). Line a rimmed baking sheet with parchment paper.
- 2Toast the fennel seeds in a dry skillet over medium heat for 1-2 minutes, shaking the pan often, until fragrant. Let cool slightly, then crush lightly with a mortar and pestle or the flat side of a knife.
- 3Trim the stalks and fronds from the fennel bulbs, reserving a few fronds for garnish. Cut each bulb in half through the core, then slice into 1/4-inch wedges, keeping a bit of the core attached to each wedge so the layers hold together.
- 4Spread the fennel wedges on the baking sheet and toss with the olive oil, crushed fennel seeds, salt, and pepper, arranging them in a single layer with space between pieces.
- 5Roast for 30-35 minutes, flipping the wedges once halfway through, until the cut edges are deeply caramelized and a paring knife slides through the core easily.
- 6Remove the sheet from the oven, scatter the lemon zest and Parmesan over the fennel, and return to the oven for 2-3 minutes, just until the cheese softens and clings to the wedges.
- 7Scatter with the reserved fennel fronds and serve warm.
Tips & variations
- Swap the Parmesan for Pecorino Romano for a sharper, saltier finish that stands up well to the anise flavor.
- Add a pinch of red pepper flakes with the fennel seeds for a subtle heat that plays well against the vegetable's sweetness.
- Thinly sliced garlic tucked between the wedges before roasting turns soft and mellow by the time the fennel caramelizes.
- Serve alongside roast chicken or pan-seared white fish, both classic pairings for fennel's anise notes.
Storage & reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat on a baking sheet in a 400°F (200°C) oven for 8-10 minutes to recrisp the edges; microwaving works but leaves the fennel soft rather than caramelized.
Tips from the Tulo kitchen
- Leaving a bit of the core attached to each wedge keeps the layers from separating in the oven, which matters more with fennel than with most roasted vegetables since raw bulb layers pull apart easily once sliced thin.
- Buy fennel bulbs with tight, pale green-white layers and fresh, feathery fronds still attached; the fronds wilt first and are a good freshness indicator even if you don't plan to use them.
FAQ
What's the difference in flavor between fennel bulb and fennel seed?
The bulb has a mild, faintly sweet anise flavor that mellows further with cooking, while the dried seed is far more concentrated and carries a warmer, slightly peppery anise note, which is why only a small amount of seed is needed to season a whole tray of bulb.
Can I use ground fennel seed instead of whole seed?
Yes, but use about half the amount called for since ground seed is more potent and disperses more evenly. Skip the toasting-and-crushing step and simply stir the ground seed into the oil before tossing with the fennel.
Is fennel the same as anise?
No. Fennel and anise are different plants that both contain anethole, the compound responsible for their similar licorice-like flavor, but they aren't interchangeable in the same quantities since anise seed has a sharper, more intense flavor.
How do I know if a fennel bulb is fresh?
Look for bulbs that feel firm and heavy for their size with tightly closed layers and no browning or splitting; the fronds should be bright green and feathery rather than yellowed or wilted.

