Roasted Cauliflower with Parmesan Crumbs

Ingredients

• 1 (2-inch) piece French baguette, torn into small pieces
• Nonstick cooking spray
• 4 cups (1-1-inch pieces) cauliflower florets
• 1/2 teaspoon kosher salt
• 2 teaspoons Dijon mustard
• 2 teaspoons fresh lemon juice
• 1 garlic clove, finely chopped
• 1 tablespoon grated Parmesan cheese
• 1/4 teaspoon ground black pepper
• 1 dash cayenne pepper