Imagine transforming humble summer squash into a mouthwatering casserole that will have everyone at the table asking for seconds. This Zucchini or Yellow Squash Casserole is more than just a side dish – it's a celebration of fresh, seasonal vegetables packed with creamy, cheesy goodness.

Bursting with flavor and topped with crispy buttery cracker crumbs, this casserole turns simple squash into a star-worthy dish. Whether you're looking to use up garden surplus or simply craving a comforting vegetable recipe, this one-pan wonder promises to be a crowd-pleaser.
Zucchini Squash Casserole: A Creamy Vegetable Sensation
Get ready to elevate your vegetable game with a recipe that transforms ordinary squash into an extraordinary meal. Moreover, this dish is incredibly versatile and works beautifully as a side or even a light vegetarian main course.
From the first bite, you'll be impressed by the perfect balance of tender squash, creamy sauce, and crunchy cracker topping. This casserole brings together simple ingredients in a truly magical way.
Serving Suggestions:
Complement your Zucchini or Yellow Squash Casserole with these delightful pairings:
- Grilled chicken
- Roasted meats
- Fresh garden salad
- Crusty bread
- Herb-roasted potatoes
Pro Tips for the Perfect Squash Casserole:
Moisture Management: Sauté the squash to remove excess moisture, preventing a watery casserole.
Cheese Choices: Experiment with different cheese varieties. Sharp cheddar or a cheese blend can add extra depth.
Cracker Creativity: Try different types of crackers for the topping. Butter crackers work best, but you can get creative.
Make-Ahead Magic: Prepare the casserole in advance and refrigerate. Bake just before serving for the freshest result.
Veggie Variations: Mix zucchini and yellow squash for a colorful presentation.
Zucchini or Yellow Squash Casserole Recipe Details:
- Preparation time: 15 minutes
- Cooking time: 25-30 minutes
- Servings: 6-8
- Equipment: Large skillet, 9x13-inch baking dish, mixing bowls
Ingredients:
For the Squash Base:
- 4 cups sliced zucchini or yellow squash (or a mix), about ¼-inch thick
- ½ small onion, diced
- 1 tablespoon butter
- 1 cup sour cream
- 1 (10.5 oz) can cream of chicken soup
- ½ teaspoon garlic powder
- ½ teaspoon dried thyme
- Salt and pepper, to taste
- 1 ½ cups shredded cheddar cheese
- 2 cups crushed buttery crackers (like Ritz)
- 3 tablespoons melted butter
Directions:
- Preheat your oven to 350°F. Thoroughly grease a 9x13-inch baking dish to prevent sticking and ensure easy serving.
- In a large skillet, melt 1 tablespoon of butter over medium heat. Add the sliced squash and diced onion, sautéing for 6-8 minutes until the vegetables are just tender. Carefully drain off any excess moisture to keep the casserole from becoming watery.
- In a large mixing bowl, combine sour cream, cream of chicken soup, garlic powder, thyme, salt, and pepper. Whisk these ingredients until smooth and well blended.
- Gently fold the cooked squash and onion into the creamy mixture. Add 1 cup of the shredded cheddar cheese, stirring to distribute evenly throughout the mixture.
- In a separate small bowl, mix the crushed crackers with 3 tablespoons of melted butter. This will create a deliciously crispy topping for the casserole.
- Transfer the squash mixture to the prepared baking dish, spreading it out evenly. Sprinkle the remaining ½ cup of cheddar cheese over the top.
- Generously distribute the buttered cracker crumbs across the surface of the casserole, creating an even layer of crunchy topping.
- Bake uncovered for 25-30 minutes. The casserole is ready when it's bubbly and the top is golden brown.
Ready to Savor!
Remove from the oven and let the casserole cool for a few minutes. This short resting period allows the casserole to set and makes serving easier.
Storage Solutions:
- Refrigerate leftovers in an airtight container for up to 3-4 days
- Reheat individual portions in the microwave for 1-2 minutes
- Can be frozen for up to 1 month (thaw in refrigerator before reheating)
- Best enjoyed within 2 days of preparation
Whether you're looking for a delicious side dish or a light vegetarian meal, this Zucchini or Yellow Squash Casserole is guaranteed to impress. It transforms simple summer squash into a creamy, cheesy delight that will have everyone coming back for more!
PrintZucchini or Yellow Squash Casserole
Get ready to elevate your vegetable game with a recipe that transforms ordinary squash into an extraordinary meal. Moreover, this dish is incredibly versatile and works beautifully as a side or even a light vegetarian main course.
- Total Time: 52 minute
- Yield: 6-8 1x
Ingredients
For the Squash Base:
- 4 cups sliced zucchini or yellow squash (or a mix), about ¼-inch thick
- ½ small onion, diced
- 1 tablespoon butter
- 1 cup sour cream
- 1 (10.5 oz) can cream of chicken soup
- ½ teaspoon garlic powder
- ½ teaspoon dried thyme
- Salt and pepper, to taste
- 1 ½ cups shredded cheddar cheese
- 2 cups crushed buttery crackers (like Ritz)
- 3 tablespoons melted butter
Instructions
- Preheat your oven to 350°F. Thoroughly grease a 9x13-inch baking dish to prevent sticking and ensure easy serving.
- In a large skillet, melt 1 tablespoon of butter over medium heat. Add the sliced squash and diced onion, sautéing for 6-8 minutes until the vegetables are just tender. Carefully drain off any excess moisture to keep the casserole from becoming watery.
- In a large mixing bowl, combine sour cream, cream of chicken soup, garlic powder, thyme, salt, and pepper. Whisk these ingredients until smooth and well blended.
- Gently fold the cooked squash and onion into the creamy mixture. Add 1 cup of the shredded cheddar cheese, stirring to distribute evenly throughout the mixture.
- In a separate small bowl, mix the crushed crackers with 3 tablespoons of melted butter. This will create a deliciously crispy topping for the casserole.
- Transfer the squash mixture to the prepared baking dish, spreading it out evenly. Sprinkle the remaining ½ cup of cheddar cheese over the top.
- Generously distribute the buttered cracker crumbs across the surface of the casserole, creating an even layer of crunchy topping.
- Bake uncovered for 25-30 minutes. The casserole is ready when it's bubbly and the top is golden brown.
- Prep Time: 15 minutes
- Cook Time: 25-30 minutes
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