Egg Muffins

Directions

1. 1
   Preheat oven to 450 degrees F (230 degrees C). Grease 12 muffin cups with olive oil.
2. 2
   Place bacon in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, 5 to 10 minutes. Transfer bacon to a paper towel-lined plate to drain.
3. 3
   Saute onion, spinach, and mushrooms in the same skillet until onions are soft, 5 to 10 minutes. Remove from heat and cool slightly.
4. 4
   Blend onion mixture in a blender until smooth. Beat onion mixture, eggs, feta cheese, and bacon together in a bowl until batter is well-combined. Pour batter into prepared muffin cups.
5. 5
   Bake in the preheated oven until a toothpick inserted into the center of a muffin comes out clean, about 35 minutes.