yellow squash casserole

Ingredients For yellow squash casserole

• 3 md

  yellow squash
• 1 md

  onion, chopped
• 1/2 c

  fine bread crumbs
• 1/3 c

  cheddar cheese, shredded
• 1/2 tsp

  salt
• 4 Tbsp

  butter, divided
• 1

  egg beaten or egg substitute