cooking spray |
3/4 cup finely chopped yellow onion |
2 cups coarsely chopped seeded peeled tomatoes |
1 cup dry white wine |
1/4 cup chopped fresh dill |
1 teaspoon red wine vinegar |
1/4 teaspoon dried oregano |
1/8 teaspoon crushed red pepper flakes |
2 lbs medium mussels, scrubbed and debearded |
1/2 teaspoon fresh ground black pepper |
crumbled feta cheese (optional) |
fresh dill sprig (optional) |