900 g fresh mussels
1 Tbsp olive oil
1 shallot, sliced
2 cloves garlic, sliced
3/4 cup dry white wine
1-1/2 cups prepared tomato sauce
2 Tbsp chopped fresh parsley
1 tsp chopped fresh tarragon
Scrub mussels; remove any beards.
Discard any mussels that do not close when tapped. Set aside.
In Dutch oven or large heavy-bottomed saucepan, heat oil over medium heat; cook shallot and garlic, stirring occasionally, until softened and golden, about 5 minutes.
Stir in wine and tomato sauce; bring to simmer. Add mussels; cover with tight-fitting lid. Cook until mussels open, about 5 minutes. Discard any mussels that remain closed. Remove from heat; stir in parsley and tarragon.