Stir together the biscuit mix, cheddar cheese and milk until a soft dough forms. Beat with a wooden spoon for about 30 seconds.
Spoon onto a greased cookie sheet and smooth down tops to prevent hard points from forming. Bake 8-10 minutes, until tops are brown.
While biscuits are baking, melt the butter in a pan and stir in garlic powder.
Once the biscuits are done brush the tops with the butter mixture.