
This Tuscan chicken zucchini casserole combines fresh vegetables, tender chicken, and fragrant herbs for a cozy dinner that feels both light and satisfying. It’s especially great when you want something comforting and wholesome without spending hours in the kitchen.
I remember pulling this together after a busy day when I barely had time to prep. The mix of zucchini and tomatoes with seasoned chicken made for a dish that felt special yet easy to make—now it’s a regular at our dinner table.
Ingredients
- Chicken breast: provides lean protein and stays juicy when baked. Choosing fresh, firm chicken makes a big difference.
- Zucchini: adds moisture and mild flavor; pick firm zucchinis without soft spots for the best texture.
- Fresh spinach: brings color and nutrients; baby spinach works well here because it wilts quickly.
- Cherry or grape tomatoes: introduce sweetness and juiciness; select bright red, plump tomatoes for peak flavor.
- Sun-dried tomatoes: boost depth and a slight tang; opt for those packed in oil and chop just before use.
- Shallot: offers a subtle onion flavor that becomes mellow when baked, thinner slices soften faster.
- Garlic: packs in warm, savory notes; use fresh cloves for the best aroma.
- Olive oil: helps to meld the flavors and keeps everything moist; choose extra virgin for richness.
- Dried oregano and basil: are classic Tuscan herbs; older herbs may lose potency so look for fresh bottles or grind whole leaves if possible.
- Garlic powder: adds an extra layer of seasoning; balance with fresh garlic to avoid overpowering.
- Salt and pepper: bring out the natural flavors; always season gradually tasting as you go.
- Paprika: provides warmth and a faint smokiness; look for bright red powder without clumps.
- Red pepper flakes: add heat—you can adjust according to your spice tolerance.
- Mozzarella and Parmesan cheeses: create a melty, savory topping; fresh Parmesan grated just before use tastes best.
- Fresh parsley garnish: adds a pop of color and subtle herbal brightness.
Instructions
- Build The Flavor Base:
- Preheat your oven to 375 degrees Fahrenheit so it’s ready when you finish prepping. In a 2.5 quart baking dish, combine the chicken breasts cut into chunks with the sliced zucchini, fresh spinach, halved cherry tomatoes, chopped sun-dried tomatoes, thinly sliced shallot, and minced garlic. Drizzle olive oil over everything. Sprinkle dried oregano, basil, garlic powder, salt, black pepper, paprika, and red pepper flakes evenly over the ingredients. Toss all together, making sure every piece is coated with the herbs and seasoning; this step is crucial to build layers of flavor through the casserole.
- Bake Covered:
- Sprinkle the shredded mozzarella and grated Parmesan evenly over the top. Cover the baking dish tightly with foil to trap moisture and bake in the preheated oven for 20 minutes. This gentle cooking will allow the chicken to cook through while the vegetables soften without drying out.
- Uncover And Brown The Cheese:
- Remove the foil and return the dish to the oven without a cover. Bake for another 10 minutes so the cheese can start to brown and the top crisps slightly. Then switch your oven to broil on high. Place the baking dish on the top rack and watch closely as the cheese golden bubbles. Broil just 1 to 2 minutes checking every 20 seconds to avoid burning the topping.
- Finish And Garnish:
- Take the casserole out of the oven and sprinkle with chopped fresh parsley. This last touch brightens the dish both visually and in flavor. For extra seasoning, feel free to add a pinch of oregano, black pepper, or red pepper flakes right before serving.

I love how the sun-dried tomatoes add a tangy depth that you don’t always expect in a zucchini casserole. This dish has become a quick fix for me when I want a cozy meal that still feels fresh and vibrant. My family especially enjoys how the melted cheese creates a crispy top that contrasts the soft veggies inside.
Storage Tips
Cool leftovers completely before transferring to an airtight container. Store in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through. This casserole can lose some crispness but the flavors stay intact nicely.
Ingredient Swaps
Swap chicken breast for thighs if you want richer flavor and slightly more fat. Use frozen spinach if fresh is unavailable but squeeze out excess water before mixing. Try swapping mozzarella for provolone or fontina to change the cheese profile a bit without sacrificing meltiness. Sun-dried tomatoes packed dry can be rehydrated in warm water first.
Serving Ideas
Serve this casserole alongside a simple green salad or crusty rustic bread to soak up the juices. It also pairs beautifully with a light white wine or sparkling water with lemon. For a heartier meal, add cooked quinoa or brown rice on the side.
Seasonal Twists
In summer you can add fresh basil leaves for an extra herbal punch. In colder months roasted bell peppers or mushrooms can join the mix to boost earthiness. Swap zucchini for yellow squash or eggplant for variety when zucchini is out of season.

This dish is a staple for tossing together a wholesome dinner any night of the week. The blend of fresh vegetables, herbs, and cheeses combined with the ease of a one-dish bake makes it a winning recipe to keep on hand.
Frequently Asked Recipe Questions
- → What type of chicken works best for this dish?
Skinless, boneless chicken breast is ideal as it cooks evenly and absorbs the Tuscan flavors well.
- → Can other vegetables be added to this bake?
Yes, vegetables like bell peppers or eggplant can complement the zucchini and add more texture and flavor.
- → How do I prevent the cheese from burning under the broiler?
Keep a close watch during broiling and check every 20 seconds to achieve a golden top without burning.
- → Is it possible to make this dish spicier?
Adding more red pepper flakes or a dash of cayenne can boost the heat to your preference.
- → What is the best way to ensure the chicken cooks fully?
Cook until the chicken reaches 165°F (74°C) internally for safe and juicy results.