Seafood And Chicken Paella With Chorizo

Name: Seafood-And-Chicken Paella With Chorizo
Ingredients: 4 ounces fresh chorizo, casings removed; 1 small onion, thinly sliced; 1 garlic clove, thinly sliced; 1/2 cup canned diced tomatoes; 1 cup arborio rice; Pinch of saffron threads dissolved in 2 tablespoons of water; 1 1/2 cups water; Salt and freshly ground pepper; 1/4 cup plus 1 tablespoon extra-virgin olive oil; 1 pound large shrimp, shelled and deveined; 1/4 cup dry white wine; 1 tablespoon fresh lemon juice; 1/2 pound mussels, scrubbed and debearded; 1/2 pound cockles, scrubbed and rinsed; 1 1/2 cups cooked chicken, preferably dark meat (8 ounces); 2 tablespoons chopped flat-leaf parsley; 1 scallion, thinly sliced