The Fennel & Fat-Back Roasted Bass Recipe is a brilliant celebration of simple, vibrant flavors coming together in perfect harmony. This dish combines the fragrant anise notes of fennel, the rich, savory depth of fat-back, and tender, flaky bass cooked to perfection. It’s a meal that feels both luxurious and cozy, showcasing how a handful of thoughtful ingredients can transform a dinner into an unforgettable experience. Whether you’re cooking for family or impressing guests, this recipe is sure to become a favorite in your repertoire.

Ingredients You’ll Need
Each ingredient in this Fennel & Fat-Back Roasted Bass Recipe has a clear role, making the preparation straightforward yet full of flavor. From the fresh fennel adding brightness to the fat-back infusing richness, every component works together beautifully.
- 1 whole bass, cleaned and scaled: Fresh and firm, this is the star that carries all the flavors.
- 2 tablespoons olive oil: Helps crisp the skin and adds a subtle fruity richness.
- 1 bulb fennel, sliced: Brings a sweet, anise-like flavor that complements the fish.
- 4 ounces fat-back, diced: Renders its savory fat to keep the bass moist and flavorful.
- 2 cloves garlic, minced: Provides a warm, aromatic base to the dish.
- 1 lemon, sliced: Adds fresh citrus brightness inside the bass cavity.
- 1 bunch fresh dill: Infuses a delicate herbaceous note that pairs beautifully with fish.
- Salt and pepper to taste: Essential seasonings that enhance all the natural flavors.
How to Make Fennel & Fat-Back Roasted Bass Recipe
Step 1: Prepare the Oven and Vegetables
Start by preheating your oven to 400°F (200°C). While it’s warming up, lay out the sliced fennel and minced garlic evenly in a roasting pan. This bed of vegetables will create a fragrant base for the bass to rest on throughout roasting, infusing the fish with subtle sweetness and aroma.
Step 2: Season and Place the Bass
Rub the entire bass, inside and out, with olive oil, then generously season with salt and pepper. Place the bass carefully on top of the fennel in the roasting pan. Rubbing olive oil all over ensures the skin crisps up nicely, while seasoning highlights the natural flavor of the fish.
Step 3: Stuff with Lemon and Dill
Fill the cavity of the bass with the lemon slices and fresh dill. This step is key for an aromatic punch; the citrus juices gently permeate the flesh as it roasts, and the dill adds a fresh, bright herbal layer beneath the richness.
Step 4: Add the Fat-Back
Scatter the diced fat-back evenly on top of the fish. As the fat-back melts slowly, it bastes the bass, keeping it moist and imparting a deep, porky savoriness that contrasts delightfully with the fennel’s sweetness.
Step 5: Roast Until Perfect
Roast the bass in the oven for about 30 to 35 minutes, or until the fish flakes easily when tested with a fork. The fennel will soften and caramelize slightly, while the fat-back crisps, creating a stunning combination of textures and flavors right on your plate.
Step 6: Serve
Lift the roasted bass onto a serving platter, accompanied by the softened fennel and the natural juices from the pan. These pan juices are gold—they’re packed with all the infused flavors and deserve to be spooned generously on top.
How to Serve Fennel & Fat-Back Roasted Bass Recipe

Garnishes
Fresh sprigs of dill and additional lemon wedges instantly brighten this dish and provide a lovely visual appeal. A light drizzle of good-quality olive oil over the top just before serving will add a silky sheen and enhance the flavors.
Side Dishes
This roasted bass pairs wonderfully with simple, fresh sides such as roasted baby potatoes tossed with rosemary, or a crisp green salad with a lemon vinaigrette. Steamed green beans or sautéed spinach also complement the dish’s freshness and richness beautifully.
Creative Ways to Present
For a truly show-stopping presentation, serve the whole bass on a rustic wooden board surrounded by the caramelized fennel and crisped fat-back. Alternatively, create individual plates by slicing the fish and layering it on warm fennel slices, drizzled with pan juices and garnished with fresh dill.
Make Ahead and Storage
Storing Leftovers
If you have any leftover Fennel & Fat-Back Roasted Bass Recipe, store it in an airtight container in the refrigerator. It will keep well for up to two days and retains its delicious flavor for quick next-day meals.
Freezing
Freezing the cooked bass is not ideal, as the texture of fish can become watery upon thawing. However, if you must, wrap portions tightly in plastic wrap and foil before freezing. Use within one month for best results and thaw slowly in the refrigerator.
Reheating
To reheat, gently warm the bass in a low oven (about 275°F or 135°C) covered loosely with foil to prevent drying out. Reheat the fennel separately in a skillet or microwave to retain its texture and flavor.
FAQs
Can I use fillets instead of a whole bass?
Absolutely! Fillets will roast faster, so reduce cooking time accordingly and be careful not to overcook. You can layer them over the fennel and fat-back just the same for a quicker option.
What is fat-back, and can I substitute it?
Fat-back is a fatty cut from the back of a pig that adds richness and moisture. If unavailable, pancetta or unsmoked bacon can work as tasty substitutes, though they may impart a slightly different flavor profile.
Is fennel necessary for this recipe?
Fennel is important in this recipe because it adds a fresh, slightly sweet and anise-like flavor that complements the fish beautifully. If you’re not a fan, try using thinly sliced leeks or celery as alternatives, though the taste will vary.
Can this recipe be made gluten-free?
Yes! This recipe naturally contains no gluten, making it perfect for gluten-free diners. Just ensure any sides or additional garnishes you choose are also gluten-free.
How can I tell when the bass is fully cooked?
The bass is done when the flesh flakes easily with a fork and appears opaque throughout. Overcooking can dry it out, so check around 30 minutes for best results.
Final Thoughts
Once you try the Fennel & Fat-Back Roasted Bass Recipe, you’ll likely be hooked on its wonderful blend of flavors and the ease of preparation. This dish feels special without being complicated, making it perfect for both casual weeknight dinners and elevated weekend meals. Give it a go, and I promise it’ll become one of your go-to recipes that friends and family will keep asking for.
Print
Fennel & Fat-Back Roasted Bass Recipe
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 4 servings
- Category: Main Dish
- Method: Roasting
- Cuisine: Mediterranean
Description
A flavorful roasted bass recipe featuring aromatic fennel and savory diced fat-back, creating a tender, flaky fish infused with fresh lemon and dill. This dish offers a delightful balance of herbal and rich flavors, perfect for an elegant yet simple seafood meal.
Ingredients
Fish and Seasoning
- 1 whole bass, cleaned and scaled
- 2 tablespoons olive oil
- Salt and pepper to taste
Vegetables and Aromatics
- 1 bulb fennel, sliced
- 2 cloves garlic, minced
- 1 lemon, sliced
- 1 bunch fresh dill
Fat-Back
- 4 ounces fat-back, diced
Instructions
- Preheat Oven: Preheat your oven to 400°F (200°C) to prepare for roasting the bass and fennel evenly.
- Prepare Roasting Pan: Arrange the sliced fennel and minced garlic evenly in the bottom of a roasting pan. This will act as a flavorful bed for the fish and help keep it moist.
- Season Bass: Rub the whole bass all over with olive oil, then season generously with salt and pepper for enhanced flavor and a crispy skin.
- Stuff Bass: Place the lemon slices and fresh dill into the cavity of the bass. These ingredients infuse the fish with fresh, zesty, and herbal notes during cooking.
- Assemble: Lay the bass carefully over the fennel and garlic layer in the pan. Then scatter the diced fat-back on top of the fish to add richness and moisture as it roasts.
- Roast: Place the roasting pan in the oven and roast for 30-35 minutes. Cook until the fish is opaque and flakes easily with a fork, indicating it is fully cooked.
- Serve: Transfer the roasted bass to plates and serve alongside the softened roasted fennel and pan juices for a complete, flavorful dish.
Notes
- If fat-back is unavailable, pancetta or thick-cut bacon can be substituted for similar flavor.
- Ensure the bass is fresh and cleaned properly to avoid any fishy smell.
- Cooking time may vary slightly depending on the size of the bass; larger fish may need a few extra minutes.
- Leftover roasted fennel and pan juices make an excellent accompaniment or base for a light sauce.

