Mix Bisquick, cheddar and milk into soft dough. Beat with a wooden spoon for about 30 seconds. Spoon on to greased cookie sheet. Smooth down tops. (Bisquick forms sharp hard points otherwise) Bake for 8 to 10 min at 450 degrees.
While baking, melt butter in pan and stir in garlic powder. Take bisquits from oven when done and brush butter on tops and serve hot.