Low-Calorie Chicken Broccoli Casserole for Cozy Weeknight Dinners

There’s something about a casserole that just feels like home, especially on those evenings when you want comfort without the heaviness. This low-calorie chicken broccoli casserole hits that sweet spot — it’s hearty but light, creamy but not overwhelming, and packed with wholesome ingredients that leave you feeling good about what’s on your plate.

Last week, I made this for dinner after a long day that left me more tired than usual. I remember standing in the kitchen, distracted by my phone buzzing every few seconds, trying to steam the broccoli just right. Somewhere between stirring the sauce and shredding the chicken, I caught the cozy aroma wafting through the house and couldn’t help but smile. The golden melted cheese on top wasn’t quite perfectly even — I kind of rushed that part — but it still looked inviting enough to pull everyone to the table. Moments like those remind me that cooking doesn’t have to be perfect to feel rewarding.

Why You’ll Love It
– It’s a balanced dish that feels rich without piling on calories, perfect for a weeknight when you want something satisfying but not too heavy.
– The creamy sauce is made with Greek yogurt, which means you get that indulgent texture without the guilt — although I have to admit, it’s not quite as decadently thick as a cream-based version.
– Prep and cook times are reasonable, so you’re not stuck in the kitchen forever, but it’s still special enough to pause and savor.
– It’s a one-dish meal that brings protein and veggies together effortlessly, which sometimes feels like a small victory when juggling everything else.

If you’re a bit wary about casseroles feeling too dense or mushy, this one stays light and fresh, thanks to the steamed broccoli and lean chicken. Just let it cool for a few minutes after baking; that’s when it really settles into the perfect texture.

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Close-up of a chicken broccoli casserole with a golden crust, low calorie

Low-Calorie Chicken Broccoli Casserole


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  • Total Time: 45 minutes
  • Yield: 6 1x

Description

A healthy and delicious low-calorie chicken broccoli casserole made with lean chicken breast, fresh broccoli, and a light creamy sauce. Perfect for a nutritious family dinner.


Ingredients

Scale

2 cups cooked chicken breast, shredded
4 cups fresh broccoli florets
1 cup low-fat plain Greek yogurt
1/2 cup low-fat shredded cheddar cheese
1/2 cup low-sodium chicken broth
1/4 cup finely chopped yellow onion
2 cloves garlic, minced
1 tablespoon olive oil
1 tablespoon whole wheat flour
1/2 teaspoon salt
1/4 teaspoon black pepper
1/4 teaspoon paprika


Instructions

Preheat the oven to 375°F (190°C).
Steam the broccoli florets in a steamer basket over boiling water for 5 minutes until tender-crisp. Drain and set aside.
Heat olive oil in a medium skillet over medium heat. Add the chopped onion and minced garlic and sauté for 3-4 minutes until softened.
Sprinkle the whole wheat flour over the onions and garlic and cook, stirring constantly, for 1 minute to form a roux.
Gradually whisk in the low-sodium chicken broth, stirring continuously to avoid lumps. Cook for 3-4 minutes until the sauce thickens.
Remove the skillet from heat and stir in the low-fat Greek yogurt, salt, black pepper, and paprika until smooth.
In a large mixing bowl, combine the shredded cooked chicken, steamed broccoli, and the creamy sauce. Mix well.
Transfer the mixture to a 9×13-inch baking dish and spread evenly.
Sprinkle the low-fat shredded cheddar cheese evenly over the top.
Bake in the preheated oven for 20-25 minutes until the casserole is heated through and the cheese is melted and slightly golden.
Remove from oven and let it cool for 5 minutes before serving.

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes

Kitchen Notes
You don’t need fancy gadgets here — a simple skillet and baking dish get the job done. When serving, it’s lovely alongside a crisp green salad or some crusty bread to scoop up any extra sauce. I’ve tried swapping the cheddar for mozzarella once, which worked okay, but I usually stick with the cheddar for that sharp bite. Sometimes I toss in a handful of sliced mushrooms or a sprinkle of red pepper flakes for a little extra flavor punch, though I haven’t tested those tweaks extensively. If you’re in a hurry, you could skip the roux step and just mix the yogurt directly with broth and seasoning, but the texture won’t be quite the same — still tasty, just different.

FAQ
Is this casserole freezer-friendly? I wouldn’t freeze it because the broccoli and sauce can get watery when thawed.
Can I use frozen broccoli? Fresh broccoli works best here for texture, but if frozen is all you have, just thaw and drain it well before using.
What’s the best way to reheat leftovers? A quick zap in the microwave works fine, though the sauce might thicken a bit.
Can I make it vegetarian? You could swap out chicken for tofu or a bean mix, but I haven’t tried that version yet.

If you’re craving something cozy, wholesome, and just a little bit special, this casserole might become a regular in your rotation. Give it a go, and don’t worry if your cheese topping looks a little uneven — it’s all part of the charm.

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