Preheat oven to 350 degrees.In a large bowl, combine all ingredients together on medium speed using a hand mixer until well combined (or use your electric mixer).Spoon mixture into a large baking dish (a 9x9 or 8x8 pan works, or a 10-inch pie plate works great too).Cover with foil and bake for 25 minutes.Top with feta cheese, diced tomatoes, and chopped cilantro.