Step 1

Preheat the oven to 350 degrees F (175 degrees C). Place butter in a 9x13-inch baking pan, and put in the oven to melt while preheating.

Step 2

Beat eggs in a medium bowl. Combine flour, baking powder, nutmeg, and salt in another bowl.

Step 3

Add flour mixture to the eggs alternating with the almond milk. Stir in spinach and Monterey Jack cheese. Pour into the melted butter in the baking pan.

Step 4

Bake in the preheated oven until set, 35 to 40 minutes.

Step 5

Remove from the oven and allow to cool for 45 minutes before cutting into 10 squares.