Beat cream cheese at low speed with an electric mixer until smooth; add biscuit mix alternately with milk, beginning and ending with biscuit mix. Stir in green onions and next 3 ingredients.
Spoon batter into 3-inch muffin cups coated with cooking spray.
Bake at 400° for 25 to 27 minutes or until a wooden pick inserted in center comes out clean. Cool on wire racks.