Heat oil in a large stockpot over medium-high heat. Add onion and garlic; sauté 3 minutes. Add tomato and next 7 ingredients (tomato through bay leaves); cook over medium heat 5 minutes. Add mussels; cover and cook 10 minutes or until mussels open. Discard bay leaves and any unopened shells. Remove mussels with a slotted spoon, and divide into 5 individual shallow bowls. Spoon tomato mixture over mussels. Serve over linguine. Garnish with basil sprigs, if desired.