Step 1: Prepare the Filling

1. Cook the Beef: In a skillet, cook the ground beef over medium heat until browned. Ensure that the meat is fully cooked, and drain any excess fat.
2. Mix the Ingredients: Stir in the barbecue sauce and onion soup mix until well combined. Set this mixture aside to cool slightly.

Step 2: Make the Dough

1. Mix Dry Ingredients: In a bowl, combine the flour and salt.
2. Cut in the Butter and Cheese: Using a pastry cutter or your fingers, cut in the butter and shredded cheese until the mixture becomes crumbly.
3. Add Wet Ingredients: In a separate container, combine the milk and lemon juice. Gradually add this mixture to the flour, stirring until a dough forms.

Step 3: Assemble the Pies

1. Roll Out the Dough: Divide the dough into manageable portions and roll out to about 1/8 inch thick on a floured surface.
2. Cut into Rounds: Use a 2.5-inch round cutter to cut out circles. Place half of these rounds on ungreased baking sheets.
3. Fill the Pies: Add a tablespoon of the beef mixture to the center of each circle on the baking sheet.
4. Seal the Pies: Top with the remaining dough circles. Seal the edges by brushing with a little water and pressing with a fork. Cut a small slit in the top of each pie to allow steam to escape.

Step 4: Bake

1. Preheat the Oven: Heat your oven to 425°F.
2. Bake the Pies: Place the baking sheets in the oven and bake for 12-16 minutes, or until the pies are golden brown.
3. Serve: Remove from the oven and serve warm.