This healthy chicken zucchini squash casserole combines lean protein with fresh vegetables for a nutritious and satisfying meal. It’s a versatile dish that works well for weeknight dinners or meal prep, offering a light yet comforting flavor profile with minimal added fat.
Ingredients
- 2 medium zucchinis, thinly sliced (about 3 cups)
- 2 medium yellow squash, thinly sliced (about 3 cups)
- 2 boneless, skinless chicken breasts (about 1 lb), cooked and shredded or diced
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1 cup low-fat cottage cheese or ricotta cheese
- 1/2 cup shredded part-skim mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/4 cup plain Greek yogurt
- 1 teaspoon dried Italian seasoning
- 1/2 teaspoon dried basil
- 1/4 teaspoon black pepper
- 1/2 teaspoon salt, or to taste
- 1 tablespoon olive oil
- 1/4 cup low-sodium chicken broth
- Fresh parsley or basil for garnish (optional)
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a 9×9-inch casserole dish with olive oil or nonstick spray.
- If you haven’t cooked the chicken yet, poach or bake the breasts until they reach an internal temperature of 165°F (74°C). Let cool, then shred or dice into bite-sized pieces.
- In a large skillet, heat 1 tablespoon olive oil over medium heat. Add the chopped onion and sauté for 3-4 minutes until translucent.
- Add the minced garlic and cook for another 30 seconds until fragrant.
- Add the sliced zucchini and yellow squash to the skillet. Cook, stirring occasionally, for about 5-6 minutes until they start to soften but still retain some crunch. Pour in the chicken broth and cook for an additional 2-3 minutes to help soften the squash and reduce excess moisture.
- Remove the skillet from heat and stir in the shredded chicken, Italian seasoning, dried basil, salt, and black pepper.
- In a medium bowl, mix together the cottage cheese (or ricotta), Greek yogurt, and half of the Parmesan cheese.
- Combine the cooked chicken and vegetable mixture with the cheese mixture, stirring gently until well combined.
- Transfer the mixture into the prepared casserole dish and spread evenly.
- Sprinkle the shredded mozzarella and remaining Parmesan cheese evenly over the top.
- Bake uncovered for 25-30 minutes, until the casserole is bubbly and the cheese is melted and lightly golden.
- Remove from the oven and let it rest for 5-10 minutes before serving. Garnish with fresh parsley or basil if desired.
Tips
- Substitutions: You can swap the chicken breasts for cooked turkey or lean ground beef if preferred. For a dairy-free version, use plant-based cheese alternatives and coconut yogurt.
- Vegetable prep: If your zucchinis or squash are very watery, salt them lightly and let them sit in a colander for 10 minutes, then pat dry to avoid a soggy casserole.
- Cooking chicken safely: Always ensure your chicken reaches an internal temperature of 165°F (74°C) to prevent foodborne illness.
- Cheese choices: Using part-skim cheeses keeps the dish lighter, but feel free to use full-fat for a richer casserole. Freshly grated cheese melts better than pre-shredded.
Serving Suggestions
This casserole pairs beautifully with a crisp green salad dressed with lemon vinaigrette to add brightness and crunch. For a heartier meal, serve alongside roasted sweet potatoes or a small portion of quinoa. A side of steamed green beans or asparagus can add extra fiber and color to your plate.
Variations
For a Mediterranean twist, add chopped sun-dried tomatoes, kalamata olives, and a sprinkle of oregano. Swap out zucchini and yellow squash for eggplant and bell peppers for a different vegetable profile. To make it spicier, mix in red pepper flakes or diced jalapeños. You can also turn this into a vegetarian dish by omitting the chicken and adding cooked lentils or chickpeas for protein.
Storage and Reheating
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, cover loosely with foil and warm in a 350°F (175°C) oven for 15-20 minutes until heated through. Alternatively, microwave individual portions on medium power for 2-3 minutes, stirring halfway to ensure even heating. This casserole can also be frozen for up to 2 months; thaw overnight in the fridge before reheating.
Frequently Asked Questions
Can I use frozen zucchini or squash for this casserole?
While fresh zucchini and squash yield the best texture, you can use frozen if fresh is unavailable. Thaw and drain excess water thoroughly before cooking to prevent a watery casserole.
Is this casserole suitable for meal prep?
Yes, it’s an excellent meal prep option. It keeps well in the fridge for several days and can be portioned out for quick lunches or dinners. Just reheat thoroughly before eating.
How can I make this casserole lower in carbs?
Since this recipe is already vegetable-heavy with lean protein, it’s relatively low-carb. To reduce carbs further, avoid adding any bread crumbs or starches and use full-fat cheese moderately if you’re following a keto or low-carb diet.
What other proteins can I use instead of chicken?
Turkey, lean ground beef, or even cooked shrimp can be swapped in. For a vegetarian alternative, use cooked lentils, chickpeas, or tofu for protein.
Can I prepare this casserole ahead of time?
Yes, you can assemble the casserole a day in advance and store it covered in the refrigerator. Bake it fresh when ready to eat, adding an extra 5-10 minutes to the baking time if it’s cold from the fridge.
How do I prevent the casserole from being watery?
Squash and zucchini contain a lot of moisture. Cooking them briefly to reduce water content before baking and draining any excess liquid helps prevent sogginess. Also, salting and draining the sliced vegetables beforehand is a useful method.
This healthy chicken zucchini squash casserole is a balanced, flavorful dish that fits well into a wholesome eating plan. Its ease of preparation and adaptability make it a great addition to your recipe repertoire, offering both comfort and nutrition in every bite.
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