1. Preheat oven to 350. 2. Cook onion in butter just until tender. 3. Transfer to 12x8 baking dish. 4. Divide the egg slices evenly over the onion/butter mixture. 5. Sprinkle with the cheese. 6. Beat remaining ingredients except the bread together in a large bowl well mixed. 7. Pour this over the cheese. 8. At this point you can refrigerate overnite but this is not necessary. 9. To finish, add the bread slices by overlapping them on top of the casserole. 10. Bake 30-35 minutes until heated through. 11. If refrigerated overnite add the bread slices just before baking and bake an additional 10 minutes. ---------------------------------------------------------------------------
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Ingredients