Step 1: Cook the Chicken
1. Heat Oil: In a large skillet, heat the olive oil over medium-high heat.
2. Cook Chicken: Add the sliced chicken to the skillet. Season with salt, pepper, and Italian seasoning (if using). Cook for about 5-7 minutes, stirring occasionally, until the chicken is cooked through and no longer pink.

Step 2: Sauté the Vegetables
1. Add Onions and Peppers: Add the sliced onion and bell pepper to the skillet with the chicken. Sauté for an additional 5-7 minutes, until the vegetables are tender.
2. Add Garlic: Stir in the minced garlic and cook for another minute until fragrant.

Step 3: Melt the Cheese
1. Add Cheese: Lower the heat to medium and place the cheese slices over the chicken and vegetable mixture. Cover the skillet with a lid to help the cheese melt, about 2-3 minutes.

Step 4: Assemble the Sandwiches
1. Prepare Rolls: While the cheese is melting, slice the hoagie rolls in half lengthwise.
2. Fill Rolls: Once the cheese has melted, use a spatula to scoop the chicken and vegetable mixture into the prepared rolls.

Step 5: Serve
1. Optional Toppings: Add any desired toppings like mayonnaise, hot sauce, or sautéed mushrooms.
2. Enjoy: Serve immediately and enjoy your delicious Chicken Cheese Steak Sandwiches!