Gather all ingredients and equipment.
For the Bread
Preheat broiler or grill to 350°F (180°C).
Slice the rolls on the bias into 1/2-inch-thick pieces.
Brush the slices with the olive oil and sprinkle with fresh ground black pepper.
Grill or broil the slices of rolls on either side until golden brown, about 1 minute per side.
For the Mussels
Place the olive oil in a large skillet or Dutch oven over medium high heat.
Add the garlic and shallots and cook for 3 minutes. Stir frequently.
Add the wine, bay leaf, and curry powder.
Bring the liquid to a boil.
Reduce heat to low and simmer for about 3 minutes.
Increase the heat to high and add the mussels.
Stir to combine, then cover and steam for 2 minutes.
Stir everything again and steam for 2 to 3 minutes more. The mussels are finished cooking when the shells open.
Using tongs or a slotted spoon remove the mussels and divide into 4 bowls.
To finish the sauce, whisk the butter into the broth and stir in the chopped herbs.
Pour the broth over the mussels.
Serve with the grilled bread.
