Preheat Your Oven
Preheat your oven to 450°F (230°C). This ensures the biscuits bake quickly and achieve a beautiful golden-brown color.
Prepare the Dough
In a large mixing bowl, whisk together the all-purpose flour, baking powder, and salt. Add the cold, cubed butter and use a pastry cutter or your hands to work it into the flour until the mixture resembles coarse crumbs.
Add Cheese and Buttermilk
Stir 3/4 cup shredded cheddar cheese into the flour mixture. Gradually add the buttermilk, mixing until just combined. Be careful not to overmix to keep your biscuits tender.
Roll Out the Dough
Turn the dough onto a floured surface and knead gently 3-4 times. Roll it out to about 1/2-inch thickness and cut into circles using a biscuit cutter or the rim of a glass.
Cook the Beef Filling
Heat a skillet over medium heat. Cook the ground beef and diced onions until browned and fully cooked. Season with salt and pepper to taste, then drain any excess fat. Stir in the BBQ sauce and remove from heat.
Assemble the Biscuits
Place a tablespoon of the beef mixture and a tablespoon of shredded cheddar cheese in the center of each biscuit circle. Fold the dough over the filling and pinch the edges to seal tightly.
Bake
Arrange the stuffed biscuits on a baking sheet lined with parchment paper. Bake for 15-20 minutes, or until the biscuits are golden brown and cooked through.
Garnish and Serve
Garnish with fresh parsley, if desired, and serve warm. Enjoy your cheesy, beef-filled biscuits!