Make this frittata for BLD -- breakfast, lunch or dinner
Preheat oven to 375˚F. Heat a 12-inch nonstick skillet over medium to medium-high heat. Add EVOO, 1 turn of the pan, then add bacon and crisp 2-3 minutes. Stir in shallots a minute more, then add sugar, salt and pepper and stir a minute more. Add vinegar and let it absorb, then remove from pan and reserve.
Add remaining oil to pan with bacon drippings, 2 turns of the pan. Add mushrooms and lightly brown, then add thyme, garlic, and salt and pepper. Wilt spinach into pan, then season with salt, pepper and nutmeg.