Preheat oven to 350F. Add the almond flour, butter and egg to the bowl of a food processor and mix until a dough is formed.
Place the dough in a 9" non-stick tart pan with a removable bottom and press out, going up the sides.
Prick the dough with a fork and cover with parchment paper and either pie weights or dried beans. Bake for 10 minutes, then remove the parchment paper/weights and allow to cool slightly before filling.
To Make the Filling
Add the eggs to a large mixing bowl and blend using a hand mixer, whisk or fork. Add in the heavy cream, salt, pepper and parmesan cheese, continue mixing. Add in the sausage, lemon thyme and spinach and mix by hand.
Pour the mixture into the quiche crust. Add in the goat cheese in small chunks and add in the tomatoes, skin side down. Bake for 25-30 minutes or until the middle has no jiggle to it. Allow to cool for a few minutes before serving.