If they are hole saw holes, just get the same size drywall and do a california patch.

Use the same size hole saw bit to drill almost all the way through from the backside of the new drywall. Cut the facing of the drywall into 6-8" squares (atleast 2" of "flap" all the way around), and peel them off while pressing on the back of your cut, and you'll pop out a plug of drywall the right size for the hole, with a square of facing attached. Pop it in the hole and trace around the paper. Sand the texture off inside that area. Then apply drywall compound to the back of the paper and around the plug edges. Press it in, and use a large drywall knife to squeeze the compound almost out. Let it dry, then blend like normal drywall.