Preheat oven to 350 degrees and spray a medium size casserole dish with avocado oil spray.
Sprinkle chopped spinach and artichoke heart quarters evenly over the bottom of the dish.
Place remaining ingredients (except feta) into a blender and blend until smooth. Pour over spinach and artichoke.
Bake for 30 min or until edges are slightly brown and top is set. Remove from oven and sprinkle with feta.
Allow to cool 10 min before slicing into squares.
Notes
Make up to 48 hours ahead and give it a quick reheat just prior to serving. This recipe is super versatile - substitute any stir ins and cheese you like for the spinach, artichoke, and feta.