1. Preheat broiler.
2. Place bread slices on a baking sheet. Coat each slice with cooking spray; broil 2 minutes on each side or until lightly toasted.
3. While bread cooks, combine watercress, olive oil, salt, and pepper in a small bowl; toss gently.
4. Place pear slices evenly on bread slices; top with blue cheese. Broil 2 to 3 minutes or until cheese melts. Remove from oven; top with watercress mixture. Serve immediately.
Serve with: White BalsamicDill Pasta Salad