Heat oven to 400°. Place bread slices on large ungreased cookie sheet. Brush tops lightly with oil. Bake 3 minutes or until crisp and very light brown.
Mix remaining ingredients except fresh chives in medium bowl. Spread 1 rounded table-spoonful crabmeat mixture on each bread slice.
Bake about 5 minutes or until filling is hot and cheese is melted. Sprinkle with chives.