1. Heat oil in a Dutch oven over medium-high heat. Add potatoes and next 5 ingredients (through saffron); sauté 5 minutes or until vegetables start to soften. Stir in wine, tomatoes, and clam juice; bring to a boil. Cover and cook 15 minutes.
2. Add mussels, shrimp, and cod to pan; cover and cook 6 minutes or until cod is done and mussel shells open. Discard any unopened shells. Stir gently to break cod into chunks. Sprinkle with basil.
Lemon-dressed salad: Combine 1 1/2 tablespoons fresh lemon juice, 1 tablespoon extra-virgin olive oil, 1/2 teaspoon Dijon mustard, 1/2 teaspoon sugar, 1/4 teaspoon salt, 1/8 teaspoon black pepper, and 1 minced garlic clove, stirring with a whisk. Combine 6 cups gourmet salad greens, 1 cup halved cherry tomatoes, and 1/2 cup slivered red onion. Drizzle dressing over salad; toss gently to coat.