Pasta Paella with Orzo

Name: Pasta Paella with Orzo
Ingredients: 1 1/2 pounds small clams; 1 1/2 pounds mussels; 1 cup dry white wine; 1 1/2 pounds orzo; 4 tablespoons olive oil; 2 medium onions, finely chopped; 8 cloves garlic, minced; 1 yellow bell pepper, sliced; 1 green bell pepper, sliced; 1 to 2 Serrano chiles, seeded and minced; 3 large tomatoes, cored, seeded and diced; 1 pound medium shrimp, peeled and deveined; 1 cup fresh or frozen peas; Pinch saffron; 1 bunch fresh oregano, chopped; 1 teaspoon ground coriander; 1 to 2 cups clam juice or fish stock, warmed; 1 teaspoon coarse salt; 1/2 teaspoon freshly ground black pepper