Savory Cheesy Chicken Cheesesteak Sandwiches

Ingredients

• 2 tablespoons olive oil
• 1/4 cup light mayonnaise
• 8 slices provolone cheese
• 1 large yellow onion, thinly sliced
• 1/2 teaspoon black pepper
• 4 hoagie rolls, split
• 1/2 teaspoon salt
• 1 large green bell pepper, thinly sliced
• 1 teaspoon garlic powder
• 2 medium boneless, skinless chicken breasts, thinly sliced
• 1 teaspoon Creole seasoning