This Easy Cheesy Zucchini Squash Casserole is a comforting mix of fresh zucchini, creamy cheese, and crunchy toppings. It’s perfect for a family dinner!
The melted cheese on top is the real star here. I can’t help but giggle when my kids ask for seconds—who knew veggies could be so popular? 😄
I love how quick and simple this casserole is to whip up. Just layer, bake, and enjoy a cheesy dish that makes everyone happy at the table!
Key Ingredients & Substitutions
Zucchini and Yellow Squash: These veggies blend well and have great textures. If you can’t find yellow squash, you can use more zucchini or even substitute with eggplant for a different flavor.
Cheddar Cheese: I love sharp cheddar for a stronger flavor, but feel free to mix in Monterey Jack or even a pepper jack for some heat! You could also use vegan cheese for a dairy-free option.
Sour Cream and Mayonnaise: They give creaminess to the casserole. You can replace sour cream with Greek yogurt for a healthier twist, and swap the mayo for a dairy-free version if needed.
Crushed Butter Crackers: They add a delicious crunch. If you want to avoid processed foods, try using crushed whole wheat crackers or even seasoned breadcrumbs for a healthier option.
How Do I Get My Onions and Garlic Just Right?
Sautéing the onion and garlic is essential for building flavor in your casserole. Here are some quick tips:
- Use medium heat and let the onion sweat for a few minutes until soft and translucent—this usually takes about 3-4 minutes.
- Adding garlic should come after the onion is translucent. Cook for another minute to avoid burning the garlic, which can taste bitter.
Getting this step right will really enhance the overall taste of your dish!
Easy Cheesy Zucchini Squash Casserole
Ingredients You’ll Need:
For the Casserole:
- 3 medium zucchini, sliced
- 3 medium yellow squash, sliced
- 1 medium onion, finely chopped
- 2 cloves garlic, minced
- 1 ½ cups shredded cheddar cheese
- ½ cup grated Parmesan cheese
- 1 cup sour cream
- 1 cup mayonnaise
- 2 large eggs
For the Topping:
- 1 cup crushed buttery crackers (such as Ritz)
- 2 tablespoons butter, melted
Seasoning:
- Salt and pepper to taste
- 1 tablespoon olive oil
Time Needed:
This delicious casserole will take you about 15 minutes for preparation and around 35-40 minutes for baking. In total, you should set aside about 1 hour from start to finish. So, in no time, you’ll have a cheesy dish ready to serve!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 350°F (175°C). Grab a 9×13-inch baking dish and lightly grease it with olive oil or cooking spray so your casserole doesn’t stick.
2. Sauté the Vegetables:
In a large skillet, heat the olive oil over medium heat. Add the chopped onion and minced garlic. Sauté them together until the onion turns translucent and fragrant, which should take about 3-4 minutes.
3. Add the Zucchini and Squash:
Add the sliced zucchini and yellow squash to the skillet. Stir occasionally, cooking them for about 5-7 minutes until they start to soften. Once done, remove from heat and let them cool slightly.
4. Mix the Creamy Ingredients:
In a large mixing bowl, combine the sour cream, mayonnaise, and the eggs. Whisk them together until you achieve a smooth mixture.
5. Combine It All:
Stir in the shredded cheddar cheese, grated Parmesan cheese, and the sautéed vegetables into the creamy mixture. Don’t forget to add salt and pepper to taste!
6. Assemble the Casserole:
Pour the combined mixture into the greased baking dish and spread it out evenly.
7. Prepare the Topping:
In a small bowl, mix the crushed buttery crackers with the melted butter. Sprinkle this mixture generously over the top of the casserole for a nice crunchy finish.
8. Bake:
Place the casserole in the preheated oven and bake for about 35-40 minutes. It’s ready when it’s bubbly and the topping is golden brown.
9. Serve:
Once out of the oven, let it cool for about 5 minutes before serving. Enjoy your warm and cheesy zucchini squash casserole!
Can I Use Different Vegetables in This Casserole?
Absolutely! Feel free to mix in or substitute with other vegetables like bell peppers, spinach, or mushrooms. Just ensure they’re chopped into similar sizes for even cooking!
Can I Make This Casserole Ahead of Time?
Yes, you can prepare the casserole a day ahead! Just assemble it, cover, and refrigerate. When you’re ready to bake, add about 5-10 minutes to the cooking time to ensure it’s heated through completely.
How Should I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it in the oven at 350°F (175°C) until heated through, or microwave individual servings for a quick meal.
Can I Freeze This Casserole?
Yes! This casserole freezes well. Assemble it, cover tightly, and store in the freezer for up to 3 months. Thaw overnight in the fridge, then bake as directed.
