Mussel soup in a garlicky wine broth with crusty bread is pure coastal comfort. This high protein mediterranean dish is a fresh, healthy family dinner that's low in calories and full of flavor.
Scrub and rinse the mussels under cold running water, discarding any open ones that do not close when tapped.
Heat olive oil in a large pot over medium heat. Add chopped onion and cook for 3 minutes until translucent. Stir in minced garlic and cook another minute, being careful not to brown.
Add cherry tomatoes and cook for 4 minutes to soften, then pour in dry white wine, stirring and raising the heat to medium-high. Simmer for 3 minutes to let alcohol evaporate.
Add mussels, sea salt, and black pepper. Cover the pot tightly and steam for 5–6 minutes, checking halfway to ensure even cooking. Mussels are done when they open.
Remove from heat, sprinkle parsley, and serve hot with crusty bread on the side. Ladle soup, making sure to include broth and mussels for each portion.