Philly Fusion French Bread Pizza

Ingredients

• 8 oz pre-shredded mozzarella cheese
• 1/8 teaspoon black pepper
• 1 pound pre-sliced steak
• 1 small onion, sliced
• 1 large green bell pepper, sliced
• 1 tablespoon vegetable oil
• 1/4 teaspoon salt
• 1 loaf French bread
• 1/3 cup mayonnaise
• 2 tablespoons unsalted butter