Spinach Fritada (Spinach Souffle)

Ingredients

• 1 kg. fresh spinach, stemmed, cooked, chopped and squeezed dry.
• 1 1/2 C mashed potatoes ( 2 potatoes ) or 2 thick slices of white bread, soaked ( crust removed ) and squeezed.
• 1 onion, chopped
• 4 Tbs oil
• 4 eggs
• ( Optional ) 1 C gruyere ( Swiss cheese )or other hard cheese, grated.
• 2 Tbs breadcrumbs, for topping, if you don't use cheese
• 1 tsp salt, a pinch of pepper.

Preparation

1. In a skillet cook onions until light brown with oil.
2. Put  spinach, mashed potatoes or squeezed bread, cooked onions, salt and pepper in a bowl. Mix well all the ingredients.  
3. Add  eggs one at a time stirring well. (optional - with a hand mixer)
4. Add half of the cheese  (only if you want to use cheese)               
5. Pour the mixture into a greased baking dish.
6. Top with bread crumbs, or with the rest of the cheese, if  you use cheese.
7. Bake in 180 C preheated oven for about 30 minutes, until golden brown.

Note: If you want you can increase the cheese quantity. You mix half of the cheese with the spinach and eggs. And half of it you use for the top.