Broccoli Souffle

Ingredients

• 2 (10 oz.) pkg. frozen, chopped broccoli, cooked and drained thoroughly
• 1 c. mayonnaise
• 1 c. grated Cheddar cheese
• 1 small can mushroom stems and pieces, drained
• 1 can cream of mushroom soup
• 1 small yellow onion, chopped fine and sauteed in a little butter
• 1 egg, slightly beaten
• 2 slices white bread, cut into cubes and sauteed in a little butter (use as topping)