Name: Creamy Parmesan Baked Zucchini Recipe
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Ingredients: 4 medium zucchini, sliced into 1/4-inch rounds or half-moons; 1 tablespoon olive oil; 1/2 teaspoon kosher salt; 1/2 teaspoon black pepper; 3/4 cup heavy cream; 1/2 cup sour cream; 1 cup freshly grated Parmesan cheese, divided; 1/2 cup shredded mozzarella cheese; 2 cloves garlic, minced; 1 teaspoon Italian seasoning; 1/4 teaspoon crushed red pepper flakes; 1/4 cup panko breadcrumbs; 1 tablespoon melted butter; 1 tablespoon chopped fresh parsley or basil, for garnish

Creamy Parmesan Baked Zucchini Recipe tastes rich, cheesy, and garlicky with tender zucchini and crisp golden edges. It works perfectly for busy weeknights, potlucks, or holiday tables, and you can get it on the table in about 35 minutes. I tested this version on my own family of picky eaters, and they scraped the pan clean without a single complaint.

Why You Should Try This Creamy Parmesan Baked Zucchini Recipe

This dish gives you all the satisfaction of a cheesy casserole with a lighter veggie base. The zucchini turns soft and juicy, while the creamy Parmesan topping bakes into a bubbly, browned crust that feels cozy and indulgent.

You can serve it as a side dish or let it shine as a vegetarian main with some bread or pasta. It uses simple ingredients that you probably already keep in your kitchen, so you can pull it together on a weeknight without a grocery run.

“This Creamy Parmesan Baked Zucchini Recipe tastes like fancy restaurant comfort food, but it comes together with weeknight effort. ★★★★★”

Ingredients You’ll Need

Zucchini and base

4 medium zucchini, sliced into 1/4-inch rounds or half-moons
- Choose firm zucchini with shiny skin and no soft spots.
- Small to medium zucchini taste sweeter and less watery than very large ones.
1 tablespoon olive oil
- Any neutral oil works, but olive oil adds nice flavor.
1/2 teaspoon kosher salt
1/2 teaspoon black pepper

Creamy Parmesan mixture

3/4 cup heavy cream
- You can swap half-and-half for a lighter version, but the sauce turns slightly thinner.
1/2 cup sour cream
- Greek yogurt works in a pinch, but sour cream gives a smoother, richer texture.
1 cup freshly grated Parmesan cheese, divided
- Use a block of Parmesan and grate it yourself.
- Pre-grated shaker cheese tends to clump and does not melt as smoothly.
1/2 cup shredded mozzarella cheese
- Low-moisture part-skim melts best and browns nicely.
2 cloves garlic, minced
- Garlic powder works if needed: use 1/2 teaspoon.
1 teaspoon Italian seasoning
- Or use a mix of dried basil, oregano, and thyme.
1/4 teaspoon crushed red pepper flakes (optional, for a mild kick)

Topping and garnish

1/4 cup panko breadcrumbs
- Regular breadcrumbs work, but panko gives a better crunch.
1 tablespoon melted butter
1–2 tablespoons chopped fresh parsley or basil, for garnish

Equipment

9×13-inch baking dish or similar casserole dish
Large mixing bowl
Cutting board and sharp knife
Measuring cups and spoons
Whisk or fork
Aluminum foil

Tips & Tricks

Slice the zucchini evenly so it cooks at the same rate and does not turn mushy.
Pat the zucchini dry with a clean towel to remove extra moisture and keep the sauce thick.
Grate the Parmesan fresh to get a smooth, melty, flavorful sauce.
Taste the cream mixture before baking and adjust salt and pepper so the flavor pops.
Do not overbake; pull the dish when the top turns golden and the zucchini feels just tender with a fork.
Broil for 1–2 minutes at the end if you want extra browning, but watch closely so it does not burn.
Use a larger baking dish if the zucchini stacks too high; a shallow layer bakes more evenly.
Let the casserole rest 5–10 minutes after baking so the sauce thickens and slices hold together.

How to Make Creamy Parmesan Baked Zucchini Recipe

Step 1: Prep the oven and pan

Preheat your oven to 400°F. Lightly grease a 9×13-inch baking dish with a little olive oil or nonstick spray. Set the dish aside while you prep the zucchini and sauce.

Step 2: Slice and season the zucchini

Wash and dry the zucchini thoroughly. Slice them into 1/4-inch rounds or half-moons, keeping the thickness as even as possible. Add the slices to a large bowl, drizzle with 1 tablespoon olive oil, and season with salt and pepper, then toss to coat.

Spread the zucchini evenly in the prepared baking dish. Try to keep them in a mostly single layer, with only a little overlap. This helps them bake tender without steaming in a big pile.

Step 3: Mix the creamy Parmesan sauce

In the same bowl, add heavy cream, sour cream, 3/4 cup of the Parmesan, mozzarella, garlic, Italian seasoning, and red pepper flakes if you use them. Whisk until the mixture turns smooth and creamy. Taste a small spoonful and adjust salt and pepper if needed.

Pour the creamy mixture over the zucchini in the baking dish. Use a spatula or spoon to spread it evenly so every slice gets coated. Sprinkle the remaining 1/4 cup Parmesan over the top.

Step 4: Add the crunchy topping

In a small bowl, mix panko breadcrumbs with melted butter. Stir until the crumbs look evenly coated and slightly glossy. Sprinkle this mixture over the top of the casserole in an even layer.

The breadcrumb layer gives you a crisp, golden crust that contrasts with the soft zucchini and creamy sauce. If you prefer a lower-carb version, skip the breadcrumbs and just add a little extra Parmesan on top.

Step 5: Bake to bubbly perfection

Place the baking dish on the middle rack of the oven. Bake for 20–25 minutes, until the zucchini feels tender when you poke it with a fork and the top looks golden and bubbly.

If you want deeper browning, switch the oven to broil for 1–2 minutes at the end. Keep the door slightly open and watch closely so the topping does not burn.

Step 6: Rest, garnish, and serve

Remove the Creamy Parmesan Baked Zucchini Recipe from the oven and set the dish on a trivet. Let it rest for 5–10 minutes so the sauce thickens and the layers settle.

Sprinkle chopped fresh parsley or basil over the top for color and freshness. Serve warm as a side dish or a light main, and enjoy that cheesy, creamy goodness while it still bubbles.

What to Serve with Creamy Parmesan Baked Zucchini Recipe

This Creamy Parmesan Baked Zucchini Recipe pairs beautifully with simple grilled chicken, baked salmon, or roasted turkey breast. You can also serve it with cooked pasta, garlic bread, or a bowl of fluffy rice to soak up the extra sauce. A crisp green salad with a lemony vinaigrette balances the richness and keeps the meal feeling fresh. For a cozy vegetarian dinner, add some roasted chickpeas or lentils on the side and call it a night.

Storage Options

Cool leftovers to room temperature, then cover the baking dish tightly or transfer to airtight containers and refrigerate for up to 3 days.
Reheat in a 350°F oven for 10–15 minutes until hot and bubbly; this keeps the topping closer to its original texture.
Use the microwave for quick single portions, heating in 30–45 second bursts and stirring gently, though the topping softens more.
Freeze in individual portions in freezer-safe containers for up to 2 months, then thaw overnight in the fridge and reheat in the oven until warmed through.