Mini Philly Cheesesteaks

Details

Ingredients

• 2 tablespoons butter, or as needed
• 2 tablespoons all-purpose flour, or as needed
• 1 cup cold milk
• 2 ounces shredded provolone cheese, or more to taste
• 1 pinch ground nutmeg
• 1 pinch cayenne pepper
• salt to taste
• 1 (12 ounce) skirt steak
• salt and freshly ground black pepper to taste
• 3 tablespoons olive oil, divided, or as needed
• ¼ cup water
• ⅓ cup diced onion
• ⅓ cup diced sweet peppers
• 2 baguettes, or as needed, cut into 48 1/2-inch thick slices
• ¼ cup shredded provolone cheese, or as needed