Easy Couscous Paella

Name: Easy Couscous Paella
Ingredients: 1/2 big onion diced small (+ the white part of the green onions); 1/2 bulb of fennel diced small; 1 red or orange bell pepper diced small; 3/4 cup of frozen pea or 1 cup of frozen green beans thawed; 3-4 cloves of garlic minced; 10 medium shrimps peeled and deveined, tail on; 1/2 pound clams; 1/2 pound mussels (preferably small); 4 medium tubes of calamari cut to 1/2 inch rings; 1 -1.5 teaspoon of turmeric; 2 tablespoons of chopped parsley; 1 tablespoon of chopped tarragon; 1 cup of clam juice or fish broth (or any other broth that you have or water); 1.5 cups of couscous; 2 tablespoons of chopped green onion (only the green part); 3 tablespoons of olive oil