Name: High-Protein Chicken and Spinach Casserole for Simple Weeknight Family Suppers
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Cuisine: International
Ingredients: 500g chicken breast, diced; 2 cups fresh spinach leaves, roughly chopped; 1 cup cooked quinoa; 1 cup broccoli florets; 1 cup low‑fat cottage cheese; 1/2 cup shredded mozzarella cheese; 1/2 cup grated Parmesan cheese; 2 tbsp olive oil; 1 tsp garlic powder; 1/2 tsp sea salt; 1/4 tsp freshly ground black pepper; 1/2 cup low‑sodium chicken broth

Prep Time

20 min

Cook Time

35 min

Servings

When the kids need a quick, satisfying dinner that fuels their growth, this High‑Protein Chicken and Spinach Casserole steps in. It blends lean chicken, nutrient‑dense spinach, and a creamy cheese topping, delivering a comforting bake that’s ready in under an hour. Perfect for busy weeknights, the dish stays moist, packs a protein punch, and sneaks veggies onto every plate without a fuss.

Why You'll Love This Recipe

✓ Quick Weeknight Solution: Ready in 55 minutes, it uses pantry staples and requires only one baking dish, saving time and cleanup.

✓ Protein‑Rich & Balanced: Each serving delivers over 35 g of lean protein, supporting muscle growth while keeping carbs moderate.

✓ Veggie‑Sneak Made Easy: Fresh spinach blends into the sauce, providing iron and fiber without a bitter taste.

3 cups fresh spinach, roughly chopped If using frozen, thaw and squeeze excess water.

1 cup shredded sharp cheddar cheese Half cheddar, half mozzarella for melt.

½ cup low‑fat Greek yogurt Adds creaminess without extra fat.

¼ cup grated Parmesan cheese Boosts umami flavor.

1 cup low‑sodium chicken broth Can replace with vegetable broth.

½ cup whole‑wheat penne or rotini Adds texture; can omit for lower carbs.

1 tbsp olive oil For sautéing chicken.

½ tsp garlic powder Adds depth without fresh garlic.

Salt and freshly ground black pepper Season to taste.

Instructions

Sauté the chicken

Heat olive oil in a large skillet over medium‑high heat. Add diced chicken, season with salt, pepper, and garlic powder. Cook, stirring occasionally, until lightly browned and no longer pink, about 5‑6 minutes. Transfer to a bowl.

Pro Tip: Do not overcrowd the pan; work in batches for a better sear.

Build the sauce

In the same skillet, add the chicken broth and bring to a simmer. Stir in Greek yogurt, half of the cheddar, and Parmesan until smooth. Reduce heat to low; the sauce will thicken slightly in the next step.

Pro Tip: Temper the yogurt by whisking in a tablespoon of hot broth first to prevent curdling.

Combine pasta, chicken, and spinach

Cook the whole‑wheat pasta al dente according to package directions; drain. Add the pasta, sautéed chicken, and chopped spinach to the sauce. Toss until spinach wilts and everything is evenly coated.

Pro Tip: If using frozen spinach, add it directly to the sauce and let it heat through.

Transfer to baking dish

Spread the mixture evenly in a 9‑x‑13‑inch casserole dish. Sprinkle the remaining cheddar cheese over the top for a golden crust.

Pro Tip: A light drizzle of olive oil on the cheese helps it brown evenly.

Bake and serve

Bake in a pre‑heated oven at 375°F (190°C) for 20‑25 minutes, until the cheese is bubbly and lightly browned. Let rest 5 minutes before slicing.

Pro Tip: Resting allows the sauce to set, making portions cleaner.

Expert Tips

Tip #1: Use a hot pan

A properly heated skillet sears the chicken quickly, locking in juices and preventing a soggy casserole base.

Tip #2: Add a splash of lemon

A teaspoon of fresh lemon juice brightens the sauce and balances the richness of cheese and yogurt.

Tip #3: Freeze leftovers properly

Cool the casserole fully, then wrap tightly. Reheat covered at 350°F until steaming, adding a splash of broth if needed.

Tip #4: Customize the veg

Swap spinach for kale, broccoli florets, or peas to change flavor and texture while keeping the protein boost.

Storage & Variations

Store leftovers in an airtight container in the fridge for up to 4 days. Reheat gently on the stovetop or microwave. For a low‑carb version, omit the pasta and double the spinach. Add roasted red peppers for a sweet pop, or substitute shredded mozzarella for a milder melt.

Frequently Asked Questions

Absolutely. Gruyère, Monterey Jack, or a reduced‑fat cheddar all melt well. Just keep the total cheese amount the same to maintain texture.

Yes. Cool completely, wrap tightly, and freeze for up to 3 months. Thaw overnight in the fridge, then bake 10‑15 minutes longer to reheat.

Omit the pasta and increase the spinach or add cauliflower florets. The sauce stays creamy thanks to the yogurt and cheese.

Nutrition

Per serving

Calories

420 kcal

Protein

38 g

Carbs

28 g

Fat

16 g

Fiber

4 g

High-Protein Chicken and Spinach Casserole for Simple Weeknight Family Suppers

Why You'll Love This Recipe