1 whole loaf French bread, split lengthwise
1 c. grated Cheddar cheese
1 c. grated Mozzarella cheese
1 c. mayonnaise
1 c. chopped green onion

Mix together all ingredients, except bread. Spread mixture on bread. Sprinkle with Parmesan cheese and oregano. Place on foil and bake at 350 degrees for 20- 30 minutes.