Prepare to create this incredible dish with these simple steps:

1. Prepare the Cod: Pat the cod fillets dry with paper towels. Season both sides with salt and pepper.
2. Heat the Oil: In a large skillet, heat olive oil over medium-high heat until shimmering.
3. Sear the Cod: Carefully place the cod fillets in the skillet. Cook for about 4-5 minutes on one side, or until golden brown.
4. Flip the Cod: Gently flip the fillets using a spatula. Cook for an additional 4-5 minutes, or until the fish flakes easily with a fork. Remove the cod from the skillet and set aside.
5. Add Garlic: In the same skillet, reduce the heat to medium. Add minced garlic and sauté for about 30 seconds until fragrant.
6. Make the Sauce: Pour in heavy cream, lemon juice, and Dijon mustard. Stir well to combine, and let the sauce simmer for 2-3 minutes until slightly thickened.
7. Reintroduce the Cod: Return the cooked cod to the skillet, spooning the sauce over the fillets. Let it heat through for an additional minute.
8. Garnish: Remove the skillet from heat and garnish with fresh parsley.

These steps will guide you in creating a dish that is both impressive and delicious!