1.Heat oil in a large, heavy-based saucepan on medium. Saute fennel, onion and garlic 5-6 minutes, until tender.
2.Stir in tomato paste and cook 1-2 minutes. Pour in wine to deglaze pan. Simmer 3-4 minutes, until reduced by half.
3.Add stock, tomatoes and orange peel. Reduce heat to low. Bring to a simmer. Mix seafood through. Cover and simmer 4-5 minutes, until fish flakes, mussels open and prawns are just cooked through. Season and add Tabasco to taste. Top with fronds and serve.
Serve this with plenty of fresh crusty bread for dipping. Change the seafood to a mixture of your choice or simply use a marinara mix.