
This chicken zucchini mushroom bake has become my go to solution for busy weeknights when I need something satisfying but simple. Diced chicken combines with tender zucchini and earthy mushrooms in a creamy cheese base that bakes up golden and bubbling. The dish balances lean protein with vegetables and aromatic herbs, making it both nourishing and comforting. What started as a way to use up summer zucchini has turned into a year round favorite that even picky eaters request.
I first tried this when we were swimming in homegrown zucchini and wanted something cozy yet simple. My family asks for it on busy nights when we need comfort food without fuss.
Ingredients
- 8 ounces boneless chicken, diced: Choose tender cuts like chicken breast or save time with pre cooked rotisserie chicken
- 4 ounces fresh mushrooms, sliced: Look for firm mushrooms with dry caps for the best flavor and texture
- 1 medium zucchini, sliced into halves or quarters: Firm zucchini with no soft spots brings a subtly sweet bite and moisture to the bake
- 2 tablespoons butter: High quality butter adds richness to the sauté
- Salt and fresh ground black pepper, to taste: Freshly ground black pepper enhances the basil and cheese
- 2 cups shredded Italian cheese blend: Look for a blend with mozzarella and provolone for the best melt
- ½ cup sour cream: Adds tang and helps create a creamy texture
- 2 green onions, sliced: Use fresh green onions with snappy green tops and crisp white bases
- 2 large eggs, beaten: Large or jumbo eggs help bind the bake so it holds together
- 2 teaspoons dried basil: Choose aromatic basil with a deep green color for maximum flavor
Step by Step Instructions
- Prepare Ingredients:
- Dice the chicken into uniform bite sized cubes for even cooking. Slice the zucchini into coins then halve or quarter them for easy bites. Slice the mushrooms and green onions thinly to distribute their flavors throughout the bake. Taking time to prep everything evenly ensures consistent cooking and better texture in every bite.
- Sauté and Build Flavors:
- Melt the butter in a high sided skillet over medium heat until foaming. Add diced chicken gently so each piece is in contact with the pan. Add zucchini and mushrooms and cook for about five minutes stirring often. Watch for the mushrooms to soften and the zucchini to become a little translucent. Season lightly with salt and fresh ground black pepper as the vegetables cook. The key is building flavor without overcooking.
- Drain Mixture:
- When the vegetables are tender but not mushy transfer everything from the skillet into a colander to drain off excess moisture. Do not skip this step or the finished bake may turn watery. Let it drain for at least two minutes while you prepare the cheese mixture.
- Mix the Creamy Cheese Base:
- In a large bowl combine the shredded Italian cheese blend with sour cream sliced green onions beaten eggs dried basil and a pinch of salt and pepper. Stir thoroughly making sure the eggs and sour cream coat everything well. This creamy base will bind everything together during baking.
- Combine and Fill Baking Dishes:
- Add the drained chicken zucchini and mushroom mixture to the cheese base. Use a big spoon to fold everything together until the vegetables and chicken are evenly coated. Gentle folding prevents breaking up the tender vegetables while ensuring even distribution.
- Bake:
- Spray your individual oven safe baking dishes with nonstick spray. Divide the chicken mixture evenly between the dishes and smooth the tops gently with the back of a spoon. Bake at 375°F for thirty to thirty five minutes. The top should be bubbling and golden brown. Remove from oven and let rest for five minutes before serving as this helps the bake set up perfectly.

The blend of cheese and basil is my favorite part. I love to use a special basil from my garden which adds a bright aroma that always reminds me of summer. One of my most vivid memories is making this dish with my daughter after picking zucchini together for the very first time.
Storage Tips
Once cooled keep leftovers in an airtight container in the fridge for up to three days. For longer storage slice and freeze individual portions then reheat straight from the freezer in the microwave or oven. The dish maintains its creamy texture beautifully when reheated properly.
Ingredient Substitutions
You can substitute cooked turkey or even ground chicken for the diced chicken. For a vegetarian version try using diced tofu and a vegetarian cheese blend. Feel free to swap the Italian cheese blend for just mozzarella or provolone if that is what you have on hand. Bell peppers or baby spinach also make wonderful additions.
Serving Suggestions
This bake works beautifully for dinner with a simple green salad or some crusty bread on the side. For brunch try serving it alongside a fruit salad or even as a filling for a hearty sandwich. The versatility makes it perfect for any meal of the day.
Cultural Context
Baked savory casseroles like this have a classic place in American home cooking where stretching a small amount of meat or cheese with plenty of vegetables was essential for feeding families. Dishes like this highlight that tradition as the bake is easy to adapt with seasonal garden produce and readily available pantry staples.

Frequently Asked Questions About Recipes
- → Can I use chicken breast or thighs?
Both chicken breast and thighs work well in this bake. Breast yields a leaner dish with tender texture, while thighs add extra juiciness and rich flavor to the finished meal.
- → How should I prepare the zucchini to avoid mushiness?
Slice zucchini into coins, then cut into halves or quarters for even cooking. Sauté just until slightly translucent and tender, then drain thoroughly to remove excess moisture before baking.
- → Can I substitute different cheeses in this dish?
Yes, mozzarella, provolone, or mild cheddar can replace the Italian blend. Each cheese brings different flavor notes while maintaining the creamy texture that makes this bake so satisfying.
- → What other vegetables work well in this bake?
Bell peppers, baby spinach, or diced tomatoes make excellent additions. Add them with the mushrooms and zucchini during sautéing to ensure they cook evenly and integrate well with other flavors.
- → Why is draining the sautéed mixture important?
Draining removes excess liquid released during cooking, preventing a watery finished dish. This step ensures your bake maintains its creamy, cohesive texture rather than becoming soggy.
- → Can this be made ahead for meal prep?
Absolutely! This bake freezes beautifully and reheats well. Prepare individual portions, freeze, then reheat directly from frozen in the microwave or oven for convenient weeknight dinners.