Stir in chopped tomatoes, sugar, and herbs. Avoid adding salt, as the mussels will release their own salty liquid once they open. Cook the mixture for 5-7 minutes until the tomatoes break down and the flavours blend well.
Pour in the red wine and simmer for a couple of minutes to enhance the sauce.
Add the cleaned mussels, cover, and cook for about 5 minutes until the mussels open. Towards the end of cooking, carefully move them around the pot with a wooden spoon to ensure the sauce reaches all the mussels and mixes evenly. Discard any that remain closed.
Notes
The total calories for this dish are approximately 670. Please note that the calorie count can vary depending on the specific products used. This recipe serves two people, with 350 calories per serving.