Preheat your oven to 350°F (175°C).
Start by preparing the crust. In a mixing bowl, combine almond flour, melted butter, salt, and an egg. Mix until a dough forms.
Press the dough into the bottom and up the sides of a 9-inch pie dish, creating an even layer. Prick the bottom with a fork to prevent bubbling.
Bake the crust for 10 minutes, or until it begins to turn golden.
While the crust is baking, heat olive oil in a skillet over medium heat. Add the chopped broccoli florets and sauté until they are tender, about 5 minutes.
In a large mixing bowl, whisk together eggs, heavy cream, garlic powder, onion powder, salt, and black pepper until well combined.
Once the crust is pre-baked, sprinkle the shredded cheddar cheese evenly over the bottom.
Spread the sautéed broccoli on top of the cheese layer.
Pour the egg and cream mixture over the broccoli and cheese, ensuring an even distribution.
Bake for 35 minutes, or until the quiche is set and the top is lightly browned.
Remove from the oven and let it cool for a few minutes before slicing.