In a medium saucepan, bring water to a boil. Add the broccoli florets and blanch for about 2-3 minutes until bright green. Drain the broccoli and immediately transfer it to an ice bath to stop the cooking process. Once cooled, chop the florets into smaller pieces.
In a skillet, heat olive oil over medium heat. Add the chopped broccoli and sauté for 2-3 minutes until heated through. Remove from heat and set aside.
In a large mixing bowl, whisk together the eggs, heavy cream, milk, garlic powder, onion powder, salt, and pepper. Make sure the mixture is well combined.
Stir in the sautéed broccoli and the shredded cheddar cheese into the egg mixture until evenly distributed.
Carefully pour the mixture into the pre-made pie crust, spreading it evenly.
Place the quiche in the preheated oven and bake for 35-40 minutes or until the edges are set and the center is slightly jiggly but not liquid. The top should be a beautiful golden brown.
Once cooked, remove the quiche from the oven and let it cool for about 10-15 minutes before slicing. This will help the filling set further.
Serve warm, garnished with fresh parsley or chives if desired. Enjoy!
Notes
Let the quiche cool for 10-15 minutes before slicing to help the filling set.