Cut baguette in half horizontally.

In a bowl, mix shredded cheese, chiles, onion, sour cream, garlic and paprika.

Spread mixture evenly over cut sides of baguette. Dust lightly with more paprika. Set, cheese mixture up, on a 17 x 14-inch baking sheet.

Broil 4 inches from heat until topping is puffy and lightly browned, about 6 minutes. Serve warm.