Preheat your oven to 425°F (220°C).

In a large bowl, whisk together flour, baking powder, and salt.

Cut in cold butter until the mixture resembles coarse crumbs.

Stir in the cooked sausage and shredded cheese gently.

Gradually add milk while mixing until just combined; the dough will be slightly sticky.

Turn dough onto a floured surface and pat it into a rectangle about 1 inch thick. Cut out biscuits using a round cutter.

Place biscuits on a parchment-lined baking sheet and bake for 15-20 minutes or until golden brown.