Cheesesteak Tortellini Pasta Recipe

Ingredients

• 1 package (9 ounces) cheese-filled tortellini , preferably freshly made or refrigerated for best texture
• 12 ounces ribeye steak , thinly sliced against the grain
• 1 medium green bell pepper , thinly sliced
• 1 medium yellow onion , thinly sliced
• 2 tablespoons olive oil , for sautéing
• Salt and black pepper, to taste
• 2 tablespoons unsalted butter
• 2 cloves garlic , minced
• 2 tablespoons all-purpose flour
• 2 cups whole milk , warmed
• 1 cup shredded provolone cheese
• 1 cup shredded mozzarella cheese
• 1/2 cup grated Parmesan cheese
• 1 teaspoon Dijon mustard
• Salt and freshly ground black pepper, to taste
• 2 tablespoons chopped fresh parsley
• Extra shredded provolone or mozzarella , for topping
• Red pepper flakes (optional), for a spicy kick