Philly Cheesesteak Casserole Recipe

Ingredients

• 4 tablespoons olive oil, divided
• 1 pound lean ground beef, 90/10 blend
• 1 teaspoon kosher salt, divided
• 1/2 teaspoon freshly ground black pepper, divided
• 1 green bell pepper, stemmed and chopped
• 1 yellow onion, chopped
• 8 ounces cremini mushrooms, trimmed and chopped
• 8 ounces cream cheese, at room temperature
• 6 ounces sliced provolone cheese, divided
• 1 hoagie roll, cut into 1-inch cubes