Easy Cheesy Brunch Casserole

• 4 slices white sandwich bread
• 1 medium onion, chopped
• 1 c. sliced fresh mushrooms
• 2 Tbsp. butter or margarine, melted
• 1 c. chopped, cooked ham
• 1 c. (4 oz.) shredded Cheddar cheese
• 1 c. (4 oz.) shredded Swiss cheese
• 1 Tbsp. all-purpose flour
• 1 1/4 c. milk
• 4 large eggs, beaten
• 1 Tbsp. prepared mustard
• 1/2 tsp. garlic salt

1. Place bread slices in bottom of a lightly greased 8-inch square baking dish; set aside.
2. Saute onion and mushrooms in butter until tender; spoon evenly over bread.
3. Top with ham. Combine cheeses and flour; sprinkle over ham.
4. Combine milk and and next 3 ingredients; pour over cheese.
5. Cover and chill 8 hours.
6. Remove from refrigerator and let stand at room temperature 30 minutes.
7. Bake at 375u0b0 for 35 minutes or until set.
8. Let stand 10 minutes before serving.
9. Yield:
10. 4 to 6 servings.

white sandwich bread, onion, mushrooms, butter, cheddar cheese, swiss cheese, flour, milk, eggs, mustard, garlic salt

Taken from www.cookbooks.com/Recipe-Details.aspx?id=457650 (may not work)