Million Dollar High Protein Chicken Casserole – Cozy, Creamy, and Packed With Protein

This is the kind of casserole that makes weeknights feel a little easier and weekends feel extra cozy. It’s creamy, cheesy, and hearty without being heavy, and it’s built to keep you full thanks to a solid protein boost. You don’t need fancy ingredients or a long prep time, just a few reliable staples and a baking dish.

The result tastes like something you’d get at a family potluck and secretly hope to take home leftovers from. Make it once and it’ll slide into your regular rotation.

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Million Dollar High Protein Chicken Casserole – Cozy, Creamy, and Packed With Protein

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 6 servings

Ingredients Method

Ingredients

  

• 3 cups cooked chicken breast, shredded or cubed (rotisserie chicken works great)
• 8 ounces whole wheat or protein-enriched pasta (penne, rotini, or shells)
• 1 cup plain nonfat Greek yogurt
• 1 cup low-fat cottage cheese (small curd if possible)
• 4 ounces light cream cheese, softened
• 1/2 cup reduced-sodium chicken broth
• 1 cup shredded part-skim mozzarella
• 1/2 cup shredded sharp cheddar
• 1/4 cup grated Parmesan
• 2 cups broccoli florets, lightly steamed or blanched
• 1 small onion, finely diced
• 2 cloves garlic, minced
• 2 tablespoons olive oil
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 1 teaspoon Italian seasoning (or dried oregano + basil)
• 1/2 teaspoon smoked paprika (optional, for a hint of warmth)
• 1/3 cup panko breadcrumbs (or crushed whole-grain crackers)
• Cooking spray

Method

 

1. Heat the oven: Preheat to 375°F (190°C). Lightly coat a 9x13-inch baking dish with cooking spray.
2. Cook the pasta: Boil in salted water until just shy of al dente. Drain and set aside. It will finish in the oven.
3. Sauté aromatics: Warm olive oil in a skillet over medium heat. Cook onion with a pinch of salt until soft, 4–5 minutes. Stir in garlic for 30 seconds until fragrant. Remove from heat.
4. Make the sauce: In a large bowl, whisk Greek yogurt, cottage cheese, and cream cheese until mostly smooth. Stir in chicken broth, salt, pepper, Italian seasoning, and smoked paprika.
5. Add the cheese: Fold in mozzarella, cheddar, and Parmesan, reserving a small handful of mozzarella and Parmesan for topping.
6. Combine the base: Add cooked chicken, sautéed onion/garlic, broccoli, and pasta to the bowl. Gently mix until everything is evenly coated.
7. Assemble: Spread the mixture into the prepared baking dish. Sprinkle the reserved cheeses on top, then scatter panko for crunch. Lightly mist the topping with cooking spray.
8. Bake: Bake uncovered for 20–25 minutes, until bubbling at the edges and the top is golden.
9. Rest and serve: Let it sit for 5–10 minutes so it sets and slices cleanly. Garnish with chopped parsley or chives if you like.

What Makes This Special

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• High protein, no fuss: Greek yogurt and cottage cheese add a big protein punch without drying the chicken.
• Creamy without a can: You’ll get a silky sauce using yogurt, cottage cheese, and a touch of light cream cheese instead of condensed soup.
• Great texture: Tender chicken, al dente pasta, and a crunchy topping give every bite real contrast.
• Meal-prep friendly: It reheats well and can be frozen, so you can bank a few servings for busy days.
• Easy to customize: Swap veggies, cheeses, or pasta shapes to match what you have on hand.

What You’ll Need

• 3 cups cooked chicken breast, shredded or cubed (rotisserie chicken works great)
• 8 ounces whole wheat or protein-enriched pasta (penne, rotini, or shells)
• 1 cup plain nonfat Greek yogurt
• 1 cup low-fat cottage cheese (small curd if possible)
• 4 ounces light cream cheese, softened
• 1/2 cup reduced-sodium chicken broth
• 1 cup shredded part-skim mozzarella
• 1/2 cup shredded sharp cheddar
• 1/4 cup grated Parmesan
• 2 cups broccoli florets, lightly steamed or blanched
• 1 small onion, finely diced
• 2 cloves garlic, minced
• 2 tablespoons olive oil
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 1 teaspoon Italian seasoning (or dried oregano + basil)
• 1/2 teaspoon smoked paprika (optional, for a hint of warmth)
• 1/3 cup panko breadcrumbs (or crushed whole-grain crackers)
• Cooking spray

Step-by-Step Instructions

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1. Heat the oven: Preheat to 375°F (190°C). Lightly coat a 9×13-inch baking dish with cooking spray.
2. Cook the pasta: Boil in salted water until just shy of al dente.

   Drain and set aside. It will finish in the oven.

3. Sauté aromatics: Warm olive oil in a skillet over medium heat. Cook onion with a pinch of salt until soft, 4–5 minutes.

   Stir in garlic for 30 seconds until fragrant. Remove from heat.

4. Make the sauce: In a large bowl, whisk Greek yogurt, cottage cheese, and cream cheese until mostly smooth. Stir in chicken broth, salt, pepper, Italian seasoning, and smoked paprika.
5. Add the cheese: Fold in mozzarella, cheddar, and Parmesan, reserving a small handful of mozzarella and Parmesan for topping.
6. Combine the base: Add cooked chicken, sautéed onion/garlic, broccoli, and pasta to the bowl.

   Gently mix until everything is evenly coated.

7. Assemble: Spread the mixture into the prepared baking dish. Sprinkle the reserved cheeses on top, then scatter panko for crunch. Lightly mist the topping with cooking spray.
8. Bake: Bake uncovered for 20–25 minutes, until bubbling at the edges and the top is golden.
9. Rest and serve: Let it sit for 5–10 minutes so it sets and slices cleanly.

   Garnish with chopped parsley or chives if you like.

Keeping It Fresh

• Storage: Cool completely, then refrigerate in an airtight container for 3–4 days.
• Reheating: Warm individual portions in the microwave at 60–70% power to prevent drying. For the whole dish, cover with foil and reheat at 325°F until hot.
• Freezing: Freeze tightly wrapped portions for up to 2 months. Thaw overnight in the fridge, then reheat covered.
• Moisture tip: If leftovers seem dry, stir in a splash of chicken broth or a spoon of Greek yogurt before reheating.

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Why This is Good for You

• Protein-forward: Chicken, Greek yogurt, and cottage cheese stack the protein without a ton of extra fat.
• Smart carbs: Whole wheat or protein pasta brings fiber, which helps you stay satisfied longer.
• Balanced plate: You get lean protein, complex carbs, and veggies in one pan—easy to portion and track.
• Lighter creaminess: Using yogurt and cottage cheese keeps the sauce rich but more nutrient-dense than heavy cream or canned soups.

Common Mistakes to Avoid

• Overcooking the pasta: If it’s fully tender going in, it can turn mushy in the oven.

  Keep it a touch firm.

• Skipping seasoning: The sauce needs enough salt and herbs to shine. Taste before baking and adjust.
• Too-wet veggies: If using frozen broccoli or peas, thaw and pat dry to avoid a watery casserole.
• Dry chicken: Use cooked chicken that’s still juicy. Rotisserie breast or poached chicken works best.
• Heavy-handed topping: A thin, even layer of panko crisps better than a thick blanket.

Alternatives

• No pasta: Use cooked quinoa, farro, or cauliflower rice (squeeze out moisture) for a lower-carb option.
• Dairy swaps: Lactose-free Greek yogurt and cottage cheese work well.

  Use a lactose-free mozzarella or your favorite dairy-free meltable cheese.

• Veggie variations: Try spinach, roasted mushrooms, zucchini, or cauliflower florets. Aim for 2 cups total.
• Flavor twist: Stir in 2–3 tablespoons pesto, buffalo hot sauce, or salsa verde for a different vibe.
• Different protein: Use cooked turkey, shredded rotisserie thigh meat, or canned chicken in a pinch. For pescatarian, flaked cooked salmon is great.
• Gluten-free: Choose gluten-free pasta and use gluten-free panko.

FAQ

Can I assemble this ahead of time?

Yes.

Assemble up to 24 hours in advance, cover, and refrigerate. When ready to bake, let it sit at room temperature for 20 minutes, then bake. You may need an extra 5–10 minutes in the oven.

How can I make it spicier?

Add crushed red pepper to the sauce, use pepper jack instead of mozzarella, or stir in a tablespoon of hot sauce.

A dash of cayenne in the panko is also nice.

What if I don’t like cottage cheese?

Blend the cottage cheese in a blender or food processor first. It becomes silky and you won’t notice the curds, but you’ll still get the protein.

Can I use raw chicken instead of cooked?

It’s better to use pre-cooked chicken to avoid uneven cooking and excess moisture. If you must use raw, dice small, sauté until just cooked, then proceed with the recipe.

How do I prevent the topping from getting soggy?

Bake uncovered, don’t overload with cheese on top, and lightly mist the panko with cooking spray.

Let the casserole rest after baking so steam can escape.

What cheese melts best here?

Part-skim mozzarella gives great stretch. Sharp cheddar adds flavor, and Parmesan sharpens the top. You can also use provolone or Monterey Jack.

Can I make it in the slow cooker?

This recipe is designed for the oven to keep the topping crisp.

If you use a slow cooker, skip the panko and cook on low for 2–3 hours, then broil briefly in an oven-safe dish to crisp the top.

In Conclusion

Million Dollar High Protein Chicken Casserole gives you comfort, convenience, and strong nutrition in one pan. It’s creamy without being heavy, simple to assemble, and endlessly flexible. Keep the base formula, tweak the add-ins, and make it your own.

When you want a reliable weeknight winner that tastes like a splurge but fuels your day, this one delivers.

About the Author

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Brandon D

Blogger/Fitness & Wellness Coach

I create quick, healthy, family-friendly recipes that make dinner simple, delicious, and stress-free.