Creating moqueca is quite simple when you follow these steps:

1. Marinate the Fish: In a bowl, combine the fish pieces, lime juice, garlic, paprika, cumin, salt, and pepper. Mix well and let it marinate for at least 30 minutes.
2. Prepare the Base: In a large pot or Dutch oven, heat olive oil over medium heat. Add the sliced onion and bell pepper, sautéing them until they are soft and fragrant.
3. Add Tomatoes: Stir in the diced tomatoes and cook for an additional 5 minutes until the tomatoes begin to break down.
4. Layer the Fish: Gently add the marinated fish pieces to the pot, spreading them evenly across the base.
5. Pour Coconut Milk: Carefully pour the coconut milk over the fish. Do not stir; instead, let it sit to maintain the layering.
6. Simmer: Cover the pot and let the moqueca simmer on low heat for about 30 minutes. This allows the flavors to meld beautifully.
7. Add Fresh Herbs: In the last few minutes of cooking, stir in the fresh cilantro for added flavor and freshness.
8. Taste and Adjust: Before serving, taste the stew and adjust the seasonings if necessary.
9. Serve Hot: Remove from heat and prepare to enjoy!