10 ounces frozen broccoli   

4 tablespoons butter   

1 small onion, chopped   

3 eggs

1 cup all-purpose flour   

1/2 cup milk

1 teaspoon salt   

1 pound Cheddar cheese, grated

1 teaspoon baking soda

 

Thaw the frozen broccoli and pat dry between paper towels.  Melt butter i a 9 X 13-inch baking dish.  Combine all ingredients together(including butter) and mix well; spoon into the pan.  Bake at 350 degrees for 35 minutes  Cool slightly before cutting into squares.  Serve hot or room temperature.