Go Back
Plate of cod and potatoes in rosemary cream sauce garnished with fresh herbs

Cod & Potatoes in Rosemary Cream Sauce

This creamy cod and potatoes dish is silky, herby, and comforting, making it perfect for both weeknight dinners and special occasions.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Dinner, Main Course
Cuisine American, Comfort Food
Servings 4 servings
Calories 450 kcal

Ingredients
  

Main Ingredients

  • 4 fillets Fresh cod fillets Or other mild white fish like haddock or pollock
  • 4 medium Yukon gold potatoes Thinly sliced
  • 2 tablespoons Olive oil
  • 2 tablespoons Butter Or more olive oil if you’re dairy-light
  • 3 cloves Garlic, minced
  • 2 teaspoons Fresh rosemary Dried works if that’s what you’ve got
  • 1 cup Heavy cream Or half-and-half with a little extra simmer time
  • 1 cup Low-sodium vegetable or seafood broth
  • 1 medium Lemon, zest and juice
  • to taste Salt and black pepper
  • optional Grated Parmesan or Pecorino For extra richness
  • optional Baby spinach or peas Stirred in at the end for a veggie boost

Instructions
 

Preparation

  • Slice the potatoes thinly, about 1/8–1/4 inch.
  • Pat the cod dry and season both sides generously with salt and pepper.

Building Flavor Base

  • In a large skillet, warm the olive oil and butter over medium heat (about 2 minutes).
  • Add the garlic and chopped fresh rosemary, stirring until fragrant (about 30–60 seconds).

Cooking Potatoes

  • Add the sliced potatoes to the skillet, tossing gently in the garlicky rosemary oil. Sprinkle with salt and pepper.
  • Pour in the broth and let it come to a gentle simmer. Cover and cook for about 10–12 minutes, stirring once or twice until mostly tender.

Making Sauce

  • Pour in the cream, add lemon zest and another pinch of rosemary. Stir and taste the sauce.
  • Let it simmer uncovered for 3–5 minutes until it thickens slightly.

Adding Cod

  • Lower the heat to medium-low and gently lay the cod fillets on top of the potatoes. Spoon a little cream sauce over each fillet.
  • Cover the skillet and cook for 8–10 minutes until the cod flakes easily with a fork.

Finishing Touches

  • Squeeze in fresh lemon juice for brightness. If using Parmesan, sprinkle over the potatoes and sauce.

Notes

Slice potatoes ahead of time and store in cold water for a few hours. This dish reheats beautifully and can be meal-prepped for work lunches.
Keyword Cod, Cream Sauce, easy dinner, potatoes, Skillet Meal