Combine ham, cream cheese, pears, cheese, onion, and pepper; refrigerate for at least 4 hours or overnight to allow flavors to blend. Slice French bread into 1/4-inch slices. Place in single layer on a baking sheet. Brush both sides of each slice with some of the olive oil. Bake at 375º for 6 minutes per side or until toasted and golden brown. Remove from oven to cool on wire rack. When ready to serve, spoon about 1 Tbsp. ham mixture on each toasted bread slice. Garnish with green onion slices. Makes 36 to 40 appetizer servings.