Speedy Cioppino

Ingredients

• 1 tablespoon olive oil
• 1 1/2 cups (1-inch) cubed red potatoes (about 8 ounces)
• 1 cup prechopped onion
• 1/2 cup finely chopped fennel bulb
• 1 tablespoon bottled minced garlic
• 1/2 teaspoon dried oregano
• 1/8 teaspoon saffron threads, crushed
• 1 cup dry white wine
• 1 (14.5-ounce) can petite-cut diced tomatoes, undrained
• 1 (8-ounce) bottle clam juice
• 1 1/2 pounds mussels (about 40), scrubbed and debearded
• 1/2 pound peeled and deveined large shrimp
• 1 (8-ounce) cod fillet
• 2 tablespoons chopped fresh basil