12 slices firm white bread
3 c. sharp cheddar cheese, shredded
3 1/2 c. milk
1/2 tsp. salt
1/4 tsp. dry mustard
1/4 c. butter
1 1/2 c. diced cooked chicken
6 eggs, slightly beaten
1 1/2 c. cooked chopped broccoli
2 tbsp. chopped onion

Spread one side of each slice of bread with butter. Using a donut cutter, cut bread slices into rings. Set aside rings. Use bread scraps to line the bottom of 9 x 13 baking dish, sprinkle 2 3/4 cups cheese on top of bread.

Add the broccoli and chicken. Arrange the bread rings, butter side up, on top. Combine the next 5 ingredients and mix well.