In a bowl, toss the sliced steak with olive oil, salt, and pepper. Ensure the steak is well coated.
1 pound thinly sliced steak, 1 tablespoon olive oil, 1 teaspoon salt, 1/2 teaspoon black pepper
Heat a large skillet or griddle over medium-high heat. Add the sliced onions and bell peppers. Sauté until softened and slightly caramelized, about 5-7 minutes. Remove veggies from pan and set aside.
1 large onion, 1 green bell pepper
Add the seasoned steak to the same hot skillet. Cook, breaking it up with a spatula, until browned and cooked through, about 3-5 minutes.
1 pound thinly sliced steak
Add the cooked onions and peppers back to the skillet with the steak. Toss to combine. Form the steak and veggie mixture into 4 equal piles. Place a slice of provolone cheese over each pile and let it melt.
1 large onion, 1 green bell pepper, 1 pound thinly sliced steak, 4 slices provolone cheese
Slice open each hoagie roll. Carefully scoop a cheesesteak pile onto each roll.
4 hoagie rolls
Enjoy your delicious, Easy Philly Cheese Steak while it's hot!