Couscous With Mussels and Shrimp

Name: Couscous With Mussels and Shrimp
Ingredients: 2 tablespoons extra-virgin olive oil; 2 ounces chorizo, diced; 1 medium onion, finely chopped; 3 cloves garlic, minced; 1/2 teaspoon Espelette pepper; 1 teaspoon Spanish smoked paprika; 1 teaspoon salt, more to taste; 1 1/2 cups coarsely chopped cherry tomatoes (about 18); 1 1/2 cups coarse-textured couscous; 1 pound large shrimp, shelled and deveined; 2/3 cup dry vermouth; 1 cup fish stock; 2 pounds mussels, scrubbed; 1 tablespoon chopped cilantro leaves; 1 lemon, in 6 wedges