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Zucchini Squash & Corn Casserole

Zucchini Squash & Corn Casserole

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Zucchini Squash & Corn Casserole is a deliciously creamy dish that brightens up any meal. Bursting with the flavors of fresh zucchini and sweet corn, this casserole is perfect for potlucks, family gatherings, or weeknight dinners. The combination of creamy cheese and tender vegetables creates a comforting dish that appeals to both kids and adults alike. Plus, it’s easy to prepare ahead of time, making it a stress-free option for busy days. Whether served alongside grilled chicken or as part of a festive holiday spread, this casserole is sure to impress your guests.

Ingredients

Scale
  • lb yellow squash (thinly sliced)
  • lb zucchini (thinly sliced)
  • ¼ cup butter (divided)
  • 2 cups diced sweet onion
  • 2 garlic cloves (minced)
  • 3 cups corn kernels
  • 1½ cups shredded white cheddar cheese
  • ½ cup sour cream
  • ½ cup mayonnaise
  • 2 eggs (lightly beaten)
  • Salt and pepper to taste
  • Fresh breadcrumbs for topping
  • Grated parmesan cheese for topping

Instructions

  1. Preheat the oven to 350ºF. Lightly grease a 9×13-inch baking pan.
  2. In a large skillet, melt 2 tablespoons of butter over medium-high heat. Sauté the zucchini, yellow squash, and onion until tender (about 10 minutes).
  3. Add minced garlic and cook for an additional 2 minutes until fragrant. Remove from heat.
  4. In a mixing bowl, combine sautéed vegetables with corn kernels, cheddar cheese, sour cream, mayonnaise, eggs, salt, pepper, and half of the breadcrumbs and parmesan cheese.
  5. Spread the mixture evenly in the baking pan.
  6. In a small bowl, mix remaining butter with the rest of the breadcrumbs and parmesan cheese; sprinkle over the casserole.
  7. Bake uncovered for 45–50 minutes until golden brown on top.

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