Spinach Squares - cooking recipe

Ingredients

3 eggs
1 c. flour
1 c. milk
1 lb. shredded Cheddar
1 tsp. salt
3 Tbsp. onion
2 pkg. frozen spinach, defrosted and squeezed
4 Tbsp. melted butter

Preparation

Mix all ingredients in a large bowl.
Melt butter in bottom of 9 x 13-inch casserole.
Bake at 350\u00b0 for 30 to 35 minutes. Cut into squares and serve.