Preheat oven to 350 degrees F.
Heat a large sauté pan over medium heat, then add olive oil and melt the butter.
Add chopped onions and cook 3-5 minutes until they begin to soften.
Add spinach and stir until wilted.
Pour spinach and onion mixture on top of thawed GF pie crust, distributing evenly between the two pans.
Top with chopped ham.
Whisk egg, milk and seasonings together until well blended.
Stir shredded cheese into egg mixture and pour over ham, spinach and onions.
Bake for 40-50 minutes until center is set.
Cool 5 minutes before slicing.
Serve warm with fresh fruit.