High Protein Rotisserie Chicken Zucchini Casserole

An ultra-easy, high-protein casserole that turns simple rotisserie chicken into weeknight magic. Zucchini adds a fresh bite, and everything bakes together into creamy, cheesy goodness. FYI, you’ll be hooked after the first bite.

Ingredients You’ll Need

• 2 cups rotisserie chicken, shredded
• 2 medium zucchini, sliced into half-moons
• 1 cup shredded mozzarella cheese
• 1/2 cup Greek yogurt (plain, 2% or full-fat)
• 1/2 cup cottage cheese (optional for extra protein)
• 1/2 cup grated Parmesan cheese
• 2 large eggs
• 1/2 cup milk (any kind)
• 2 cloves garlic, minced
• 1 teaspoon dried oregano
• 1/2 teaspoon dried basil
• 1/2 teaspoon paprika
• Salt and pepper, to taste
• 1 tablespoon olive oil
• Optional topping: extra mozzarella or grated cheddar for bubbling finish

How to Make High Protein Rotisserie Chicken Zucchini Casserole

1. Preheat your oven to 375°F (190°C). Lightly grease a 9×9-inch baking dish or a similar casserole dish.
2. In a large skillet, heat the olive oil over medium heat. Add the zucchini slices and a pinch of salt. Sauté 3–4 minutes until they start to soften. Remove from heat and set aside.
3. In a large bowl, whisk together Greek yogurt, cottage cheese (if using), eggs, milk, minced garlic, oregano, basil, paprika, salt, and pepper until smooth.
4. Fold in the shredded rotisserie chicken, sautéed zucchini, half of the Parmesan cheese, and half of the mozzarella. Stir until everything is well coated with the creamy mixture.
5. Pour the mixture into the prepared baking dish. Smooth the surface with a spatula. Sprinkle the remaining mozzarella and Parmesan on top. If you want extra ooey-gooey top, add the optional topping now.
6. Bake for 25–30 minutes, or until the center reaches 165°F (74°C) and the top is lightly golden and bubbly. If the top isn’t as golden as you’d like, broil for 1–2 minutes, watching carefully so it doesn’t burn.
7. Let the casserole rest for 5–10 minutes before slicing. This helps it set and makes serving easier.

Make It Your Own

• Want more spice? Add a pinch of red pepper flakes or a dash of hot sauce to the egg mixture.
• Skipping dairy? Use dairy-free yogurt and a dairy-free cheese alternative if needed, then compensate with a touch more mozzarella on top for meltiness.
• Vegetarian option: Swap chicken for chickpeas or cooked lentils, but you’ll lose the high protein edge unless you bump up with nutritional yeast or extra cheese.

Texture and Flavor Notes

• The zucchini brings a light, refreshing bite that brightens the dish and keeps it from feeling heavy.
• Greek yogurt plus cottage cheese creates a creamy sauce without a ton of fat, while still packing protein.
• The rotisserie chicken gives you a jump-start on flavor—no need to cook raw chicken for hours.

Storage and Reheating Tips

• Store leftovers in an airtight container in the fridge for up to 3 days.
• Reheat in the microwave in 1–2 minute bursts or bake at 350°F (175°C) for 10–15 minutes until hot.
• To freeze, portion into individual servings and freeze up to 2 months. Thaw overnight in the fridge before reheating.

Nutrition Information

• Calories: 360 per serving
• Protein: 34 grams per serving
• Carbohydrates: 9 grams per serving
• Fat: 20 grams per serving
• Fiber: 2 grams per serving
• Sugar: 5 grams per serving
• Sodium: 520 milligrams per serving

Why This High Protein Zucchini Casserole Works

Let’s be real: you want a meal that feels indulgent but still fits your protein goals. This casserole nails that balance. The rotisserie chicken provides a solid protein punch, while the zucchini adds bulk without the guilt. The creamy sauce uses Greek yogurt and cottage cheese to stay light, yet still delivers a comforting, cheesy finish. IMO, it’s a crowd-pleasing winner you can customize for picky eaters or tiny humans with picky palates.

Flavor Boosters and Quick Variations

• Swap in cooked ground turkey for a different texture while keeping the protein high.
• Use Italian seasoning in place of oregano and basil for a familiar bakeshop aroma.
• Stir in a handful of chopped spinach for extra greens without changing the protein balance.

Version for Meal Prep Pros

If you’re all about planning ahead, this dish scales beautifully. Portion into meal prep containers, keep refrigerated, and reheat as needed. It maintains moisture well, so you don’t end up with a dry reheated mess. FYI, doubling the recipe works well, just keep an eye on baking time—you may need an extra 5–10 minutes.

FAQ

Can I use fresh chicken instead of rotisserie?

Absolutely. If you’re using raw chicken, cook it to an internal temperature of 165°F (74°C) and shred before mixing with the others. The overall protein count will be similar, just a bit more prep time.

Is this casserole spicy?

Not inherently. If you want heat, add a pinch of red pepper flakes to the sauce or a dash of hot sauce. Start small and taste as you go—you’re in control here, champ.

Can I make this dairy-free?

Yes, swap Greek yogurt for a dairy-free yogurt and use a dairy-free cheese alternative. You may want to increase the spice a touch to compensate for flavor richness.

How many servings does this make?

This recipe yields about 4 servings. If you’re feeding a bigger crew, multiply ingredients accordingly and adjust bake time as needed.

What’s the best way to tell it’s done?

The center should reach 165°F (74°C). The top should be lightly golden and bubbling. A gentle jiggle in the middle is a good sign, and a quick broil can finish a pale top.

Conclusion

If you want a comforting, protein-packed casserole that’s simple to throw together after a busy day, this High Protein Rotisserie Chicken Zucchini Casserole is your new best friend. It doesn’t pretend to be fancy, it just delivers flavor, texture, and real protein without drama. Give it a try, then brag about it to your friends—no guilt, just delicious leftovers. IMO, it’s a keeper.