Baked Cheesy Ground Beef Stuffed Potatoes

Ingredients

• 4 large baking potatoes
• 454 gm lean ground beef
• 1/4 tsp salt
• 1 onion, diced
• 4 Tbsp unsalted butter, divided
• 1 clove garlic, minced
• 1/4 cup flour
• 3/4 cup beef broth
• 1 cup milk
• 110 gm cheddar cheese, shredded
• 1 Tbsp Worcestershire sauce
• 2 tsp Dijon mustard
• 1/4 tsp salt or to taste
• 1/4 tsp pepper
• chopped parsley for garnish if you wish