Step 1

FIRST STEP:Preheat the oven to 350*

Step 3

Crack the eggs into a mixing bowl and beat well

Step 5

SECOND STEP:Brush melted butter on the inside bottom and sides of a 9 inch square baking pan

Step 7

Add flour, milk, baking powder, to the eggs and mix really well

Step 9

THIRD STEP:Stir in the spinach, onion and cheeses

Step 11

Carefully spoon into the pan

Step 13

FOURTH STEP:Bake for 30 to 35 minutes

Step 15

Let set for 15 minutes on the stove top

Step 17

Cut into squares and enjoy!