Mushrooms Rule!

• Ready In: 9 hrs
• Serves: 8

Ingredients

• 1  lb mushroom, sliced and sauteed in unsalted butter
• 1⁄2 cup  finely chopped onion
• 1⁄2 cup  finely chopped green pepper
• 1⁄2 cup  finely chopped celery
• 1⁄2 teaspoon  salt substitute
• 1⁄4 teaspoon pepper
• 1⁄4 cup mayonnaise
• 8  slices  bread, cut into sixths
• 2  eggs, beaten
• 1 1⁄2 cups milk
• 1 (10 ounce) can  cream of mushroom soup, undiluted
• 1  cup  shredded swiss cheese
•  additional unsalted butter, melted

Directions

1. Butter a 2-quart casserole.
2. Lay half the bread squares in the bottom, fitting closely.
3. Brush with melted butter.
4. Combine sautéed mushrooms with celery, onion, green pepper, salt, pepper, and mayonnaise.
5. Spread mixture over bread squares.
6. Cover surface with another layer of bread squares, brush with melted butter.
7. Combine milk and egg and pour over casserole.
8. Cover and refrigerate several hours or overnight.
9. One hour before serving, spread soup over surface and sprinkle with Swiss cheese.
10. Bake at 350°F for 45 minutes to one hour or until puffed and lightly brown.