Philly Cheesesteak Stuffed Shells

This recipe was adapted from Fun in the Kitchen - Author: Jill.

Philly Cheesesteak Stuffed Shells

Pasta shells stuffed with seasoned meat, peppers, onion, mushrooms and CHEESE, then baked with a homemade cheese sauce!
Ingredients

• 1 pound lean ground beef
• 2 tablespoons butter
• 1 small onion peeled and diced
• 1 green bell pepper seeded and diced
• 1 small can of mushrooms
• 1 tablespoon Worcestershire sauce
• 1 teaspoon of beef bouillon 
• 2 tablespoons ketchup
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 8 ounces shredded cheddar cheese (divided)
• 24 jumbo pasta shells cooked according to package directions
• 1 cup milk
• 1 cup beef broth
• 1 tablespoon cornstarch

Instructions

• Preheat oven to 350F degrees.
• Heat a large skillet over medium heat. Crumble the ground beef in to the skillet and cook, stirring often, until completely browned. Remove the beef from the pan and set aside. Drain the fat from the pan.
• Add the butter to the skillet and melt over medium heat. When the butter is melted, add the diced onion, mushrooms and bell pepper and saute until softened, about 5 minutes.
• Add the browned beef back to the skillet. Add the Worcestershire sauce, ketchup, salt, and pepper; mix well. Cook the mixture for about 2 minutes over medium heat, stirring occasionally.
• Remove from heat and stir in half of the cheese.
• Fill the cooked pasta shells with the meat mixture and place in an even layer in a glass baking dish.
• In a medium sauce pan, whisk together the milk, beef broth, and cornstarch. Heat the mixture over medium heat until hot, then add the remaining cheddar cheese; stir until melted and the sauce thickens. Pour the sauce over the stuffed shells in the pan.
• Bake the stuffed shells at 350F for 10 minutes, or until the cheese is melted.
• Serve hot with the extra cheese sauce on the side.