Spinach Bars

1/2 stick butter
2 pkgs. frozen spinach, chopped, thawed and squeezed dry
3 large eggs
1 tsp. baking powder
6 medium mushrooms, chopped
1 small onion, minced
1 tsp. salt
1 lb. Cheddar cheese, finely grated

Melt butter in 9 x 13 baking dish.

In a bowl combine spinach, eggs, baking powder, mushrooms, onion, salt and Cheddar.

Pour over butter in dish.

Bake at 350� for 35 minutes.

Cool a bit before cutting into 1 inch cubes.