Preheat oven to 450 degrees.
Generously grease a large jellyroll pan.
Place tortillas on prepared pan.
Arrange pear wedges on each tortilla like the spokes of a wheel, radiating from the center.
Arrange Brie slices between the pear slices.
Sprinkle on onion, chili and salt.
Bake 3 to 5 minutes, or until edges of tortilla are browned and cheese is melted.
Remove from oven and let sit 3 to 5 minutes.
Cut each tortilla into 8 wedges.