To create Coconut Lime Fish Soup, follow these straightforward steps:

1. Prep the Fish: Cut the fish fillets into bite-sized pieces. Season with salt and pepper.
2. Sauté Vegetables: In a large pot, heat the olive oil over medium heat. Add the chopped onion and sauté until translucent, about 5 minutes.
3. Add Aromatics: Stir in the minced garlic and grated ginger. Cook for another minute until fragrant.
4. Add Bell Pepper: Toss in the diced red bell pepper and continue to sauté for another 3-4 minutes.
5. Combine Liquids: Pour in the coconut milk and broth. Stir to combine, bringing the mixture to a gentle simmer.
6. Cook the Fish: Add the fish pieces to the pot. Simmer for about 5-7 minutes, or until the fish is cooked through and flakes easily with a fork.
7. Finish with Flavors: Stir in the lime juice, lime zest, and fish sauce (if using). Adjust seasoning with salt and pepper as necessary.
8. Garnish: Remove from heat and serve immediately, garnished with fresh cilantro.

These steps will guide you through preparing this incredible dish effortlessly.