This Cheesy Zucchini Squash Casserole is a warm hug in a dish! With fresh zucchini and a creamy cheese blend, it’s sure to please both veggie lovers and cheese fans alike.
Making this casserole is a breeze! I love to pair it with grilled chicken for dinner. The cheesy goodness makes vegetables feel like a treat! You might find yourself going back for seconds!
Key Ingredients & Substitutions
Zucchini and Yellow Squash: These veggies are the stars of the casserole! Fresh zucchini and yellow squash create a lovely texture. If you can’t find fresh, frozen can work too. Just remember to thaw and drain any excess water.
Cheese: Cheddar and mozzarella give great flavor and creaminess. If you’re dairy-free, try nutritional yeast for a cheesy taste. For a bolder flavor, experiment with pepper jack or gouda.
Sour Cream and Mayonnaise: These add creaminess. If you’re looking for a lighter option, Greek yogurt is a fantastic substitute. It still provides that rich texture but adds a bit of tang!
Breadcrumbs: The topping adds crunch. You can use crushed crackers or toss in some cornflakes for a different texture. If gluten-free, look for gluten-free breadcrumbs or skip it altogether for a softer dish.
How Can I Ensure My Casserole is Creamy and Well-Blended?
Mixing the sour cream, mayonnaise, and eggs is crucial for a smooth consistency. Make sure to blend these first before adding any of the veggies to avoid lumps.
- Whisk the wet ingredients well until combined before adding seasonings.
- When incorporating the sautéed veggies, fold gently to keep the mixture light.
- Letting the casserole sit for a few minutes after baking helps it set, making it easier to serve.
Cheesy Zucchini Squash Casserole
Ingredients You’ll Need:
Vegetables:
- 4 medium zucchini, sliced
- 3 medium yellow squash, sliced
- 1 medium onion, finely chopped
- 2 cloves garlic, minced
Cheeses:
- 2 cups shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
Creamy Base:
- 1 cup sour cream
- 1/2 cup mayonnaise
- 2 large eggs
Seasonings and Extras:
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon dried thyme or Italian seasoning
- 1/2 cup breadcrumbs (optional, for topping)
- 2 tablespoons olive oil or butter (for sautéing)
How Much Time Will You Need?
This delicious cheesy casserole takes about 15 minutes to prep and 30-40 minutes to bake. Once it cools for a few minutes, it’s ready to enjoy! Perfect for a comforting side dish or a flavorful vegetarian meal.
Step-by-Step Instructions:
1. Preheat & Prepare:
First things first, preheat your oven to 350°F (175°C). While it’s heating, lightly grease a 9×13 inch casserole dish to make sure nothing sticks later!
2. Sauté the Aromatics:
In a large skillet, heat the olive oil or butter over medium heat. Once hot, add the chopped onion and minced garlic. Sauté for about 3-4 minutes until they are softened and the kitchen smells amazing.
3. Cook the Zucchini and Squash:
Add the sliced zucchini and yellow squash to the skillet. Stir to combine and cook for about 5-7 minutes, just until they start to soften and release moisture. Then, take the skillet off the heat and set it aside.
4. Mix the Creamy Base:
In a large mixing bowl, combine the sour cream, mayonnaise, and eggs. Give it a good stir! Then mix in the salt, pepper, and thyme or Italian seasoning until everything is well blended.
5. Combine and Fold:
Now add your sautéed veggies and onions into the creamy mixture. Carefully fold in the shredded cheddar and mozzarella cheese, saving about ½ cup of cheddar for the topping later.
6. Pour and Spread:
Pour this cheesy veggie goodness into your prepared casserole dish, spreading it out evenly to ensure every bite is tasty!
7. Add Toppings:
Sprinkle the reserved cheddar cheese, Parmesan cheese, and breadcrumbs on top for a deliciously crispy finish.
8. Bake to Perfection:
Place the casserole in the preheated oven and bake for about 30-40 minutes. It’s ready when it’s set in the middle and the top is golden brown.
9. Cool and Serve:
Once out of the oven, let the casserole cool for 5-10 minutes so it sets nicely. Then, dig in while it’s warm, and enjoy this delightful dish as a side or a vegetarian main course!
FAQ About Cheesy Zucchini Squash Casserole
Can I Use Different Types of Cheese?
Absolutely! While cheddar and mozzarella are classic choices for creaminess and flavor, you can experiment with other cheeses like gouda or pepper jack for a more unique taste. Just ensure the cheese melts well!
Can I Make This Casserole Ahead of Time?
Yes, you can prepare the casserole a day in advance! Just follow the instructions up to the point of baking, cover it tightly with plastic wrap, and refrigerate. When you’re ready to bake, simply remove it from the fridge and bake as instructed. You may need to add a few extra minutes to the baking time.
How Do I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to four days. To reheat, cover with foil and warm in the oven at 350°F (175°C) until heated through, or you can microwave individual portions until hot.
Can I Add Other Vegetables?
Definitely! Feel free to mix in other veggies like bell peppers, spinach, or cherry tomatoes to add more flavor and nutrition. Just make sure to sauté any added vegetables to reduce moisture before combining them into the dish.
