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Yellow Squash Casserole

July 4, 2025 by Melissa Harrison Leave a Comment

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A comforting, cheesy vegetable bake with a crispy cracker topping — perfect for family dinners or potlucks!


📝 Ingredients

  • 4 cups sliced yellow squash
  • ½ cup chopped onion
  • ¼ cup water
  • 35 buttery round crackers, crushed
  • 1 cup shredded Cheddar cheese
  • 2 eggs, beaten
  • ¾ cup milk
  • ¼ cup butter, melted
  • 1 tsp salt
  • Ground black pepper, to taste
  • 2 tbsp butter, for topping

🔪 Instructions

  1. Preheat your oven to 400°F (200°C).
  2. In a large skillet, combine the sliced squash, chopped onion, and ¼ cup water.
  3. Cover and cook over medium heat for about 5 minutes, until squash is tender.
  4. Drain well and transfer to a large mixing bowl.
  5. In a separate bowl, combine the crushed crackers and shredded Cheddar cheese.
  6. In another bowl, whisk together the beaten eggs and milk.
  7. Add the following to the squash mixture:
    • Half of the cracker-cheese mixture
    • The egg and milk mixture
    • The melted butter
    • Salt and pepper, to taste
      Mix everything until just combined.
  8. Transfer the mixture to a greased 9×9-inch baking dish.
  9. Sprinkle the remaining cracker-cheese mixture evenly on top.
  10. Dot with 2 tablespoons butter.
  11. Bake for 25 minutes, or until golden brown and bubbling.
  12. Remove from oven and let it cool slightly before serving warm.

⏱ Prep & Cook Time

  • Preparation Time: 15 minutes
  • Cooking Time: 25 minutes
  • Total Time: 40 minutes
  • Servings: 6

✅ Tips

  • Be sure to drain the squash well after cooking to avoid a soggy casserole.
  • For a richer flavor, use freshly shredded cheese instead of pre-packaged.
  • Crush the crackers into small, even pieces for a uniform texture in the topping.
  • Use real butter for best taste in both the mix and topping.

🔄 Variations & Substitutions

  • Zucchini option: Replace all or part of the yellow squash with zucchini.
  • Cracker alternatives: Use whole-wheat crackers, panko, or cornflakes.
  • Add flavor: Stir in a pinch of garlic powder, paprika, or dried thyme.
  • Make it creamier: Add a few spoonfuls of sour cream or a bit of cream cheese.
  • Cheese swap: Try Monterey Jack or mozzarella for a mild, gooey texture.

❓ Frequently Asked Questions

Can I make this dish ahead of time?
Yes. You can fully assemble the casserole, cover it, and refrigerate up to 24 hours in advance. Add the topping just before baking.

Can I freeze it?
It’s best eaten fresh, but leftovers can be portioned, frozen, and reheated in the oven or microwave. The topping may lose a bit of its crunch.

Can I use frozen squash?
Yes, just thaw and drain thoroughly before using. You may need to reduce cooking time in the skillet.

Print

Yellow Squash Casserole

Servings

6

servings
Prep time

15

minutes
Cooking time

25

minutes

Ingredients

  • 4 cups sliced yellow squash

  • ½ cup chopped onion

  • ¼ cup water

  • 35 buttery round crackers, crushed

  • 1 cup shredded Cheddar cheese

  • 2 eggs, beaten

  • ¾ cup milk

  • ¼ cup butter, melted

  • 1 tsp salt

  • Ground black pepper, to taste

  • 2 tbsp butter, for topping

Directions

  • Preheat oven to 400ºF (200ºC).
  • In a skillet, add sliced squash, onion, and water. Cover and cook over medium heat for 5 minutes.
  • Drain well and transfer squash mixture to a large bowl.
  • In a separate bowl, combine crushed crackers and shredded cheese.
  • In another bowl, whisk together milk and eggs.
  • Add to the squash:
    Half of the cracker-cheese mixture
    Melted butter
    Milk and egg mixture
    Salt and pepper
    Mix well
  • Transfer to a greased 9×9-inch baking dish.
  • Top with the remaining cracker-cheese mixture and dot with 2 tbsp butter.
  • Bake for 25 minutes, or until golden brown.
  • Serve warm.

🍽 Serving Suggestions

  • Serve as a vegetable side with grilled chicken, baked fish, or roast beef.
  • Pair it with green beans, mashed potatoes, or a simple salad for a well-rounded meal.
  • Perfect for holiday dinners, weeknight meals, or Southern-style potlucks.

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Filed Under: COMFORT FOOD, STEWS AND CASSEROLES

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