Mushroom and Spinach Quiche with a Spaghetti Squash Crust

Using vegetables in place of flour for the crusts of pizza and quiche is a brilliant, low-calorie, nutrient dense swap. I used the original veggie pasta, spaghetti squash, for the crust for this recipe but you could use spiralized sweet potato or zucchini noodles or even broccoli or cauliflower rice.          …