Pre-heat oven to 375 degrees. Butter the bottom and sides of a tart pan or pie plate.
Wilt the spinach in 3 small batches for 1 minute in a microwave. Pat with paper towels to remove excess moisture and chop.
Beat the eggs by hand in a large mixing bowl and add all of the ingredients and mix well to incorporate.
Pour into the prepared tart/pie pan. You can fill to the brim. Any excess egg mixture can be baked in prepared individual ramekins or muffin tin.
Place pans on a cookie sheet and bake for 50-60 minutes until slightly browned on top and the mixture has set. Remove and allow to cool for 10 minutes before servings.
Notes
The Quiche is delicious cold or re-heated the next day. You can also drizzle with truffle oil before serving.