Butter 9x13 pan well. Trim crusts on 10 slices of bread. Cube bread and put in pan. Grate 1 cup each Swiss and cheddar cheese and put in pan on top of bread. In a bowl, whisk 6 eggs, 3 cups of milk, 1/2 teaspoon salt. Pour over bread and cheese.
2
Pre-cook 1/2 pound bacon (until about half done). Crumble and sprinkle over the top. Cover with Saran Wrap. Put in refrigerator overnight.
3
Remove from refrigerator to counter in the morning. When ready, bake until golden and set (350 degrees for 45 minutes). Cut into squares and serve.
4
When guests arrive: Put egg dish in oven - takes about 45 minutes. Yield: 6 serving squares. Serve with breakfast sausages.