Preheat the oven to 450 degrees. Place a large skillet or casserole dish in the oven while it preheats with the butter to melt in the center.

Place the rest of the ingredients into a blender and blend until smooth. Carefully pull out the skillet or casserole dish with a oven mit and pour the batter into the center. Bake for 18 minutes.

Serve with Greek yogurt and fresh fruit.