
Keto Salmon in Fennel Lime Mascarpone Cream with Blistered Green Beans
An original keto recipe of pan-seared salmon finished in a silky fennel, lime, and mascarpone sauce, served with blistered garlicky green beans. Elegant, quick, and low in carbs.
Important notice: This recipe is not medical advice. Consult your healthcare professional.
Ingredients
- 4 (aprox. 680) g skin-on salmon fillets (6 oz cada uno)
- 300 g green beans (without puntas)
- 120 g mascarpone (at room temperature)
- 180 g fennel bulb (thinly sliced finas)
- 50 g shallot (chopped fina)
- 3 cloves garlic (2 chopped and 1 thinly sliced)
- 120 ml heavy cream (without sugar)
- 120 ml fish or chicken broth (without sugar added)
- 30 ml olive oil (divided)
- 30 g butter (divided)
- 1 unit lime (30 ml de zumo)
- 8 g fresh dill (chopped)
- 2 g sweet paprika (for the salmón)
- 6 g salt (or to taste)
- 2 g black pepper (freshly ground)
Nutrition facts
per serving
Approximate nutritional information. Estimated from the recipe’s ingredients and amounts, using standard reference nutrition values. It may vary with brands, sizes and cooking method. For guidance only; not a substitute for medical or dietary advice.
Allergens
Instructions
- 1
1. Pat the salmon fillets dry with paper towels and season on both sides with 1/2 tsp (3 g) salt, black pepper, and sweet paprika. Set aside while you prepare the other ingredients.
- 2
2. Heat a large oven-safe skillet over medium-high heat with 1 tbsp (15 ml) olive oil. Add the green beans, a pinch of salt, and the sliced garlic. Sauté for 4 to 5 minutes until blistered in spots but still crisp. Remove and set aside.
- 3
3. In the same skillet, add 1 tbsp (15 ml) olive oil and 1 tbsp (15 g) butter. Place the salmon skin-side down and cook over medium-high heat for 4 minutes until the skin is golden. Flip and cook 1 minute more. Transfer the salmon to a plate.
- 4
4. Reduce to medium heat. In the same skillet add the remaining 1 tbsp (15 g) butter, the sliced fennel, shallot, and minced garlic. Cook for 4 minutes, stirring, until the fennel is tender and fragrant.
- 5
5. Pour in the broth and scrape up any browned bits from the pan. Add the heavy cream, mascarpone, lime zest, and lime juice. Cook over medium-low heat for 2 to 3 minutes until smooth and creamy.
- 6
6. Return the green beans to the skillet and toss them with some of the sauce. Nestle the salmon on top, skin-side up.
- 7
7. Finish cooking in a preheated oven at 400°F (200°C) for 5 to 6 minutes, until the salmon is cooked to your liking and the sauce is gently bubbling.
- 8
8. Remove the skillet from the oven, sprinkle with fresh dill, and adjust with the remaining salt if needed. Serve the salmon with the green beans and plenty of fennel, lime, and mascarpone sauce.
Chef tips
For crispier skin, do not move the salmon during the initial sear. Use room-temperature mascarpone so the sauce stays smooth and lump-free.
Substitutions
You can swap mascarpone for full-fat cream cheese, dill for fresh parsley, and green beans for asparagus. If you do not have fresh fennel, use half-moon zucchini for a different but still keto-friendly profile.
What I used to make it
Generic kitchen tools that work for this recipe. You don’t need to buy anything to make it.
Illustrative imageCosori Pro LE 5 Qt Air Fryer
Browning and baking with little oil
- Browns food with very little oil
- Handy for vegetables, chicken and reheating
- Check the basket capacity
Illustrative imageTempPro TP19H Digital Thermometer
Checking doneness of meat and chicken
- Checks doneness of meat and chicken
- Quick reading
- Clean the probe after each use
Illustrative imageT-fal Ultimate Hard Anodized 12" Non-Stick Pan
Eggs, omelets and stir-fries
- Eggs and omelets that don’t stick
- Comfortable, sturdy handle
- Use wooden or silicone utensils
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