Cheesy Yellow Squash Casserole Recipe - (4.7/5)

Ingredients

• 6 medium yellow squash (3-1/2 to 4 lbs)
• 1 medium onion, chopped (2/3 cup)
• 2 tablespoons butter
• 1/2 cup grated Parmesan cheese
• 1 cup mild or sharp cheddar cheese, shredded
• 1/2 cup sour cream (can sub mayo)
• Salt, garlic salt, black pepper, to taste
• 1/2 cup crushed buttery crackers for Topping (such as Club or Waverly)