Prep all ingredients as listed. Slice the Brie and let it sit at room temperature until softened.
In a bowl, mix the softened butter, minced chives, minced parsley, Dijon mustard, and grated garlic. Season with salt and black pepper to taste.
In a separate bowl, toss the arugula with lemon juice. Season with salt and black pepper.
Spread the herb butter mixture evenly inside the baguette.
Layer with sliced deli ham, Brie cheese, and arugula. Top with the other half of the baguette to complete the sandwich.
In a blender, combine mango, yogurt, milk, cardamom, and sugar. Blend until smooth and creamy. Taste and adjust sweetness as needed.
Serve the jambon beurre with carrot sticks, hummus, pickle spears, and mango lassi.