Keto Garlic Butter Salmon with Cauliflower Mash – Heart-Healthy Low-Carb Dinner

This luxurious keto garlic butter salmon paired with velvety cauliflower mash delivers restaurant-quality flavors while keeping your carb count under 6g per serving. The combination of omega-3 rich salmon and healthy fats creates the perfect fat-burning meal that will leave you satisfied for hours.

Whether you’re following a ketogenic lifestyle or simply looking to incorporate more nutrient-dense, low-carb meals into your routine, this recipe proves that healthy eating doesn’t mean sacrificing flavor. The garlic butter sauce infuses the salmon with incredible richness while the cauliflower mash provides a creamy, comforting base that rivals traditional mashed potatoes.

Ingredients

• 680g (1.5 lbs / 4 fillets) salmon fillets, skin-on
• 1 large head cauliflower, 900g (2 lbs), cut into florets
• 113g (4 oz / 8 tbsp) unsalted grass-fed butter, divided
• 120ml (4 fl oz / ½ cup) heavy cream
• 4 cloves garlic, minced
• 60ml (2 fl oz / ¼ cup) fresh lemon juice
• 30g (1 oz / ¼ cup) fresh parsley, chopped
• 60ml (2 fl oz / ¼ cup) extra virgin olive oil
• 1 tsp sea salt, divided
• ½ tsp black pepper, freshly ground
• ½ tsp paprika
• ¼ tsp garlic powder
• 30g (1 oz / ¼ cup) Parmesan cheese, grated

Instructions

1. Step 1: Preheat your oven to 200°C (400°F). Remove salmon from refrigerator 15 minutes before cooking to bring to room temperature.
2. Step 2: Bring a large pot of salted water to boil. Add cauliflower florets and cook for 12-15 minutes until fork-tender and easily pierced.
3. Step 3: While cauliflower cooks, pat salmon fillets dry with paper towels. Season both sides with ½ teaspoon salt, black pepper, paprika, and garlic powder.
4. Step 4: Heat olive oil in a large oven-safe skillet over medium-high heat. Place salmon skin-side up and sear for 3-4 minutes until golden crust forms.
5. Step 5: Flip salmon carefully and transfer the entire skillet to preheated oven. Bake for 8-10 minutes until internal temperature reaches 63°C (145°F).
6. Step 6: Drain cauliflower thoroughly and transfer to a food processor. Add 56g (2 oz) butter, heavy cream, remaining ½ teaspoon salt, and Parmesan cheese.
7. Step 7: Process cauliflower mixture until smooth and creamy, about 2-3 minutes. Adjust seasoning to taste and keep warm.
8. Step 8: Remove salmon from oven and transfer to a plate. In the same skillet over medium heat, melt remaining 56g (2 oz) butter.
9. Step 9: Add minced garlic to melted butter and sauté for 1 minute until fragrant, being careful not to burn.
10. Step 10: Remove skillet from heat and stir in lemon juice and fresh parsley to create the garlic butter sauce.
11. Step 11: Divide cauliflower mash among four plates, creating a smooth bed for the salmon.
12. Step 12: Place salmon fillets on top of cauliflower mash and drizzle generously with the warm garlic butter sauce. Serve immediately.

Nutrition Facts (per serving)

Chef’s Tips

• For perfectly cooked salmon, use a digital thermometer – the internal temperature should reach 63°C (145°F) for flaky, moist fish that’s not overcooked.
• Make your cauliflower mash extra smooth by passing it through a fine-mesh sieve after processing, then folding in the cream and butter for restaurant-quality texture.
• Don’t skip bringing the salmon to room temperature before cooking – this ensures even cooking and prevents the outside from overcooking while the center remains cold.

Health Benefits

This keto-friendly meal provides exceptional nutritional value with salmon delivering high-quality omega-3 fatty acids EPA and DHA, which support heart health, brain function, and reduce inflammation. The high fat content promotes satiety and supports ketosis, while the complete protein aids in muscle maintenance and metabolism. Cauliflower provides fiber, vitamin C, and antioxidants while keeping carbs minimal, making this dish perfect for blood sugar management and sustainable weight loss.

Storage Instructions

Store leftover salmon and cauliflower mash separately in airtight containers in the refrigerator for up to 3 days. Reheat gently in a 160°C (325°F) oven for 8-10 minutes, or microwave in 30-second intervals. The garlic butter sauce can be stored for up to 1 week and gently rewarmed before serving. For best quality, consume within 24-48 hours as salmon is best enjoyed fresh.