Preheat oven to 375°F. Brush both sides of bread slices with oil; place in single layer on baking sheets. Bake 6-8 minutes or until both sides of each bread slice are lightly toasted, turning after 4 minutes.
Meanwhile, combine cream cheese, sausage, mozzarella cheese, red pepper, onion and basil in large bowl. Stir in rosemary and cayenne pepper, if desired.
Top bread slices with sausage mixture.
Bake 7-10 minutes or until topping is thoroughly heated. Serve warm.