1Heat oven to 350°F. Spray 9-inch quiche dish or glass pie plate with cooking spray.
2In large skillet, heat butter and oil over medium heat. Add onion; cook 2 to 3 minutes, stirring occasionally, until soft. Add kale and salt. Cook 2 to 3 minutes, stirring occasionally, until kale begins to wilt. Spoon mixture into quiche dish. Top with olives.
3In medium bowl, beat Bisquick mix, milk and eggs with whisk. Pour over kale and olive mixture.
4Bake uncovered 30 to 40 minutes or until knife inserted in center comes out clean.