This spinach quiche is delicious in its simplicity. The bright green, earthy spinach, gruyere, and mozzarella cheese are truly a trifecta made in heaven.
Place the pie crust into a pie pan (9-inch wide and 3-inch deep). Trim off the extra edges from the crust.
Weigh down the crust by placing parchment paper on top of it and filling it with rice, dried beans, peas, or pie weights. Bake the crust at 350°F for 25 minutes or until golden brown.
Fill the crust with the thawed and drained spinach and the mozzarella and gruyere cheese.
In a separate dish, whisk together the eggs and heavy whipping cream and season with salt.
Pour the egg mixture into the quiche. Bake the quiche at 400°F for 20 minutes or until center is fully set. Slice and enjoy!