
Saute onion and green pepper in olive oil over medium heat. with salt and pepper. Set aside.
In medium bowl, mix cream cheese, shredded mozzarella and provolone. Stir until well combined.
Add sautéed onion and green pepper to steak, and cheese mixture and bake at 350 degrees F for 20-25 minutes.
Serve with toasted baguettes.
https://www.chef-in-training.com/2014/12/philly-cheese-steak-dip/