Heat pie filling until hot; keep warm.
Heat griddle or skillet over medium heat or to 375º. Grease griddle with margarine if necessary. Beat baking mix, milk and eggs with wire whisk or hand beater in large bowl until smooth. Fold in ham, cheese and onion.
Pour batter by scant 1/4 cupfuls onto hot griddle. Cook until edges are dry. Turn; cook until golden brown. Serve with warm pie filling; sprinkle with cinnamon.