Ham And Cheese Strata - cooking recipe

Ingredients

10 slices firm bread, trim crusts and cut into cubes
2 Tbsp. butter
1 c. chopped yellow onion
1 1/2 c. chopped cooked ham
1 c. Monterey Jack, grated *
1 c. grated sharp Cheddar *
3 1/2 c. milk
5 eggs
1 tsp. Dijon mustard

Preparation

*May substitute 1/4 cup pepper cheese.