Cut the Tilapia into pieces, then season with 1 tsp salt, black pepper, and lemon juice.
Heat the olive oil, sauté the onions and garlic until fragrant.
Add bay leaves, green onions, celery, chopped tomatoes, and tomato paste. Stir well.
Add parsley, basil, thyme, rosemary, cilantro leaves, and broth.
Once boiling, season with salt, sugar, powdered broth, parmesan cheese, chili powder, dried chili, tomato sauce, and butter. Cook over medium heat for 10 minutes.
Add the Tilapia, green mussels, and cooking cream. Stir gently.
Cook on low heat for 10 more minutes. Remove from heat and serve with croutons.