Preheat oven to 400 degrees.
Heat olive oil in skillet and cook ham, onion and asparagus until the onion is soft.
Spoon half of that mixture into a greased 9" pie plate.
Layer half the cheese over it and then repeat the layers.
Stir milk, eggs, Bisquick and salt together in a bowl.
Pour over ingredients in the pie plate.
Bake 25-35 minutes until a knife comes out clean.
Let stand 10 minutes before serving.