Savory Baked Zucchini & Squash Casserole

A creamy, cheesy, veggie-packed dish—perfect as a side or light main!

Ingredients (Serves 4–5)

2 zucchini, sliced
2 yellow squash, sliced
1 small onion, sliced
2 cloves garlic, minced
1 cup mozzarella cheese
½ cup Parmesan cheese
½ cup sour cream (or Greek yogurt)
1 egg
2 tbsp olive oil
1 tsp thyme or Italian seasoning
½ tsp paprika
Salt & pepper

Optional topping:

¼ cup breadcrumbs + 1 tbsp melted butter

Instructions (30–35 min)

Preheat oven to 180°C (350°F) and grease a baking dish.
Heat oil, sauté onion + garlic, then add zucchini & squash. Cook 5–6 min until slightly tender. Season.
In a bowl, mix sour cream, egg, and half the cheeses.
Combine veggies with creamy mix and transfer to dish.
Top with remaining cheese (+ breadcrumbs if using).
Bake 25–30 min until golden and bubbly.
Cool slightly and serve warm.

Nutrition (Per Serving Approx.)

Calories: 220–300
Protein: 10–15g
Carbs: 8–12g
Fat: 15–22g
Fiber: 2–3g

✔ Low-carb friendly (skip breadcrumbs)
✔ Great veggie side or light meal

Tips

Drain excess moisture from zucchini for a thicker casserole
Broil 2–3 minutes at the end for a crispy top 🔥
Add cooked chicken or beef to make it a full meal

Q&A

Can I make it ahead?

Yes! Assemble and refrigerate, then bake when ready.

How long does it last?

Up to 3–4 days in the fridge.

Can I freeze it?

Yes, but texture may soften slightly after reheating.

Can I make it keto?

Yes—use full-fat dairy and skip breadcrumbs.

Author
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Sara Mitchell

Sara Mitchell is an expert restaurant content creator who writes easy-to-read guides about CAVA and other Mediterranean fast-casual chains in the United States. She covers locations, menus, prices, and hours, making it simple for visitors to find nearby restaurants and what to order quickly.

With years of experience in restaurant research and local SEO, Sara creates accurate, user-friendly guides that work for both people and search engines. Her goal is to help users go from search results to their nearest restaurant or menu choice with as few clicks as possible.