Roast Chicken and Brie Sandwich | culture: the word on cheese

Ingredients

• 1 large (24- to 28-inch crusty baguette, quartered crosswise)
• 4 tablespoons whole-grain mustard
• 1 3- pound rotisserie chicken (meat removed and sliced)
• 8 ounces brie (cut into ¼-inch-thick slices)
• 1 head frisée (root end trimmed, outer dark green leaves removed)
• 2 tablespoons lemon juice (from about ½ lemon)
• 2 teaspoons extra-virgin olive oil