Healthy One-Pot Chicken and Spinach Casserole for Easy Weeknight Suppers

30 min prep 3 min cook 3 servings
Healthy One-Pot Chicken and Spinach Casserole for Easy Weeknight Suppers
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Prep Time
15 min
Cook Time
30 min
Servings
4

Why You'll Love This Recipe

✓ One‑pot convenience: Minimal cleanup means you can spend more time at the table and less time scrubbing dishes.
✓ Nutrient‑dense: Chicken provides lean protein while spinach adds iron, calcium, and antioxidants for a balanced meal.
✓ Flavorful simplicity: A blend of garlic, lemon, and a touch of cheese creates depth without complicated techniques.

After a long day, the last thing you want is a kitchen full of pots. This Healthy One‑Pot Chicken and Spinach Casserole delivers a wholesome dinner in under an hour, using just one skillet. The recipe balances lean protein, vibrant greens, and a creamy, yet light, sauce that satisfies without excess calories. It’s perfect for busy families, meal‑preppers, or anyone craving comfort food that doesn’t compromise nutrition.

3 cups fresh spinach, roughly chopped Can replace with kale or Swiss chard.
1 medium onion, diced Adds sweetness; yellow or white works.
2 cloves garlic, minced Fresh garlic gives depth; garlic powder in a pinch.
1 cup low‑fat Greek yogurt Creates creamy sauce; substitute with low‑fat sour cream.
½ cup grated Parmesan cheese Adds umami; can use Pecorino.
1 cup low‑sodium chicken broth Keeps casserole moist; water works in a pinch.
1 tbsp olive oil For sautéing; can replace with avocado oil.
½ tsp dried thyme Adds earthy aroma; rosemary works too.
Salt and freshly ground black pepper, to taste Season gradually for balance.

Instructions

1

Sauté aromatics

Heat olive oil in a large, deep skillet over medium heat. Add diced onion and cook 3‑4 minutes until translucent. Stir in minced garlic and thyme; sauté another minute until fragrant, being careful not to brown the garlic.

Pro Tip: If the pan looks dry, add a splash of broth before the garlic.
2

Brown the chicken

Add chicken pieces, season with salt and pepper, and spread them evenly. Cook 5‑6 minutes, turning once, until lightly browned but not fully cooked through. This step builds flavor and prevents the meat from steaming later.

Pro Tip: Avoid overcrowding; work in batches if necessary.
3

Create the sauce

Stir in chicken broth, scraping the browned bits from the pan. Bring to a gentle simmer, then lower the heat and whisk in Greek yogurt and half of the Parmesan. The sauce should thicken slightly without boiling, preserving the yogurt’s creaminess.

Pro Tip: Temper the yogurt by adding a spoonful of hot broth first.
4

Add spinach and finish

Fold in the chopped spinach; it will wilt quickly. Sprinkle the remaining Parmesan on top, cover the skillet, and let everything steam for 5 minutes. The chicken finishes cooking, and the cheese melts into a golden crust.

Pro Tip: If the sauce looks too thick, add a splash more broth.
5

Serve

Spoon the casserole onto plates, garnish with a drizzle of olive oil or a squeeze of lemon if desired. Pair with a simple side salad or crusty whole‑grain bread for a complete, balanced dinner.

Expert Tips

Tip #1: Use a heavy‑bottomed skillet

A thick‑walled pan distributes heat evenly, preventing hot spots that could scorch the yogurt‑based sauce.

Tip #2: Dry chicken pieces

Pat the chicken dry with paper towels before cooking; this encourages browning and adds richer flavor.

Tip #3: Add a splash of lemon

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

Nutrition

Per serving

Calories
350 kcal
Protein
28 g
Carbs
12 g
Fat
18 g

Frequently Asked Questions

Yes. Cool the casserole completely, then transfer to an airtight container. Freeze for up to 3 months. Reheat gently on the stovetop or microwave, adding a splash of broth if the sauce thickens.

Substitute with low‑fat sour cream or a blend of cottage cheese blended smooth. The sauce will stay creamy, though the tang will be slightly milder.

Absolutely. Stir in 1 cup cooked brown rice or quinoa after the sauce is formed, then let everything heat together for a few minutes. Adjust broth quantity if needed.

Healthy One-Pot Chicken and Spinach Casserole for Easy Weeknight Suppers
Recipe Card

Healthy One-Pot Chicken and Spinach Casserole for Easy Weeknight Suppers

Prep
30 min
Cook
3 min
Total
33 min
Servings
3
Category: Dinner
Cuisine: International
Difficulty: Easy
Course: Main
Quick Tips
  • Make ahead friendly
  • Freezer safe 3 months
  • Easily doubled
  • Customizable

Ingredients

Instructions

1
Sauté aromatics

Heat olive oil in a large, deep skillet over medium heat. Add diced onion and cook 3‑4 minutes until translucent. Stir in minced garlic and thyme; sauté another minute until fragrant, being careful no...

2
Brown the chicken

Add chicken pieces, season with salt and pepper, and spread them evenly. Cook 5‑6 minutes, turning once, until lightly browned but not fully cooked through. This step builds flavor and prevents the me...

3
Create the sauce

Stir in chicken broth, scraping the browned bits from the pan. Bring to a gentle simmer, then lower the heat and whisk in Greek yogurt and half of the Parmesan. The sauce should thicken slightly witho...

4
Add spinach and finish

Fold in the chopped spinach; it will wilt quickly. Sprinkle the remaining Parmesan on top, cover the skillet, and let everything steam for 5 minutes. The chicken finishes cooking, and the cheese melts...

5
Serve

Spoon the casserole onto plates, garnish with a drizzle of olive oil or a squeeze of lemon if desired. Pair with a simple side salad or crusty whole‑grain bread for a complete, balanced dinner....

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