Creating this delectable dish is easier than you might think. Follow these simple steps to make Grilled Cod with Roasted Tomatoes & Creamy Dill Sauce:

1. Preheat the Oven: Start by preheating your oven to 400°F (200°C).
2. Prepare the Tomatoes: In a baking dish, combine the halved cherry tomatoes with 2 tablespoons of olive oil, salt, and pepper. Toss well and spread evenly.
3. Roast the Tomatoes: Place the baking dish in the preheated oven and roast the tomatoes for 15-20 minutes until they are soft and slightly caramelized.
4. Prepare the Cod: While the tomatoes are roasting, season the cod fillets with salt, pepper, and lemon juice.
5. Grill the Cod: Heat a grill pan over medium-high heat and add 1 tablespoon of olive oil. Once hot, place the cod fillets on the grill and cook for 4-5 minutes on each side or until they are cooked through and easily flake with a fork.
6. Make the Creamy Dill Sauce: In a mixing bowl, whisk together sour cream, chopped dill, Dijon mustard, minced garlic, salt, and pepper until smooth.
7. Combine and Serve: Once the tomatoes are roasted and the cod is grilled, place the cod on serving plates and spoon the roasted tomatoes over each fillet. Drizzle generously with the creamy dill sauce.

Following these instructions will guide you to achieve a flavorful fish dish that is sure to impress.