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Yellow Squash Casserole

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Yellow Squash Casserole is a creamy, cheesy Southern-style dish made with tender squash, savory onions, and a buttery cracker topping. It’s a comforting and versatile side that pairs perfectly with any main course.

Ingredients

  • 4 cups yellow squash, sliced
  • 1 small onion, chopped
  • 2 cloves garlic, minced (optional)
  • 2 tbsp butter (plus 1 tbsp for topping)
  • 2 large eggs
  • 1/2 cup sour cream or mayonnaise
  • 1 cup shredded cheddar cheese
  • 1/4 cup grated Parmesan cheese
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1 cup crushed Ritz crackers or breadcrumbs (for topping)

Instructions

  1. Preheat oven to 350°F and grease a 9×9-inch baking dish.
  2. In a large skillet, melt 2 tbsp butter. Add onion and garlic, and sauté until softened, about 2–3 minutes.
  3. Add sliced squash to the skillet and cook until just tender, 8–10 minutes. Drain any excess liquid.
  4. In a large bowl, whisk together eggs, sour cream or mayo, cheddar cheese, Parmesan, salt, and pepper.
  5. Stir the cooked squash mixture into the bowl and mix until combined.
  6. Pour into the prepared baking dish and spread evenly.
  7. Mix crushed crackers with 1 tbsp melted butter and sprinkle evenly over the top.
  8. Bake for 30–35 minutes, or until the casserole is bubbly and golden on top.
  9. Let rest for 5–10 minutes before serving.

Notes

  • Drain squash well to avoid a watery casserole.
  • Use a mix of yellow squash and zucchini for variation.
  • To make gluten-free, use gluten-free crackers or breadcrumbs.
  • Shredded Swiss or mozzarella can be used instead of cheddar for a different flavor.

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