Spinach Artichoke Chicken Casserole

The first time I made this casserole, it was supposed to be a quick dinner using leftover rotisserie chicken, but my roommate kept wandering into the kitchen asking what smelled so good. By the time it came out of the oven, golden and bubbling, wed both been hovering over the oven door for ten minutes. We ended up eating it straight from the baking dish while standing at the counter because neither of us could wait another second to plate it properly.

Last winter when my sister was recovering from surgery, I brought this over in disposable containers. She called me two days later confessing shed eaten nothing but this casserole for breakfast, lunch, and dinner because it was the only thing that actually sounded good and made her feel taken care of.

Ingredients

• 3 cups cooked chicken breast, shredded or diced: Rotisserie chicken works perfectly here, or bake some breasts ahead of time
• 1 cup Greek yogurt: Use plain nonfat or 2%, this is the secret to making it creamy without excessive heavy cream
• 4 oz reduced-fat cream cheese, softened: Let it sit on the counter for 30 minutes before starting to avoid any lumps
• 1 cup shredded mozzarella cheese: Part-skim melts beautifully and keeps the protein high
• 1/2 cup grated Parmesan cheese: This adds that salty, umami depth that makes the whole dish come together
• 2 cups fresh baby spinach, roughly chopped: Dont be afraid to pack it in, it wilts down significantly
• 1 can (14 oz) artichoke hearts, drained and chopped: Look for ones packed in water, not oil, for a cleaner taste
• 1 small yellow onion, finely diced: Sweet onions work beautifully here if you want a milder flavor
• 2 cloves garlic, minced: Fresh garlic makes all the difference, jarred garlic can taste harsh when baked
• 1 tsp dried Italian herbs: A blend of oregano, basil, and thyme works perfectly
• 1/2 tsp black pepper: Freshly cracked gives the best aroma
• 1/4 tsp salt: The cheese adds plenty of saltiness, so go light here
• 1/4 tsp crushed red pepper flakes: Optional, but adds a lovely warmth that cuts through the creaminess
• Olive oil spray or 1 tbsp olive oil: For sautéing the vegetables and greasing the pan
• Fresh parsley, chopped: For a pop of color and fresh flavor at the end

Instructions

Preheat your oven to 375°F (190°C) and prepare your baking dish:

Lightly grease a 9x13-inch baking dish with olive oil spray, paying attention to the corners where sticking often happens.

Sauté the onions:

Heat olive oil in a large skillet over medium heat, add diced onion and cook for 2-3 minutes until translucent and fragrant.

Add the garlic:

Stir in minced garlic and cook for just 30 seconds, watching carefully so it doesnt brown or become bitter.

Wilt the spinach:

Toss in the chopped spinach and stir for 1-2 minutes until just wilted but still bright green, then remove from heat.

Combine everything:

In a large mixing bowl, mix the shredded chicken, artichoke hearts, sautéed vegetables, Greek yogurt, cream cheese, half the mozzarella, all the Parmesan, and seasonings until well combined.

Assemble the casserole:

Spread the mixture evenly in your prepared baking dish and sprinkle the remaining mozzarella over the top.

Bake until golden:

Bake for 30-35 minutes until the cheese is bubbly and has golden patches in spots.

Let it rest before serving:

Wait 5 minutes before serving to let the casserole set, then garnish with fresh parsley.

Save

This recipe has become my go-to for new parents and anyone recovering from illness because it feels like a hug in a baking dish. Something about the combination of warm, cheesy comfort food plus all that protein just hits differently when people need nourishment most.

Make Ahead Magic

You can assemble this casserole up to 24 hours ahead and keep it covered in the refrigerator. When ready to bake, add about 5-10 minutes to the cooking time since it will be starting from cold.

Freezing Instructions

This freezes exceptionally well either before or after baking. If freezing unbaked, thaw overnight in the refrigerator before baking as directed. For already-baked portions, reheat in the microwave with a splash of water to keep it creamy.

Serving Suggestions

A simple side salad with lemon vinaigrette cuts through the richness beautifully. Roasted vegetables or cauliflower rice also work wonderfully for a complete meal.

• Arugula with lemon dressing adds perfect brightness
• Roasted broccoli or asparagus makes it feel like a complete dinner
• Cauliflower rice keeps it low-carb but satisfying

Save

Theres something deeply satisfying about a dish that tastes indulgent while packing 38 grams of protein per serving. Enjoy every creamy, cheesy bite.

Recipe FAQs

→ Can I use rotisserie chicken instead of cooking chicken breast?

Yes, rotisserie chicken works perfectly and saves time. Simply shred the meat and use it in place of cooked chicken breast. Two rotisserie chickens typically yield enough meat for this dish.

→ How do I store and reheat leftovers?

Store in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave in 1-2 minute intervals, or bake at 350°F until warmed through. The texture holds up well after reheating.

→ Can I make this casserole ahead of time?

Absolutely. Assemble the entire dish, cover tightly, and refrigerate for up to 24 hours before baking. Add 5-10 minutes to the baking time if baking straight from the refrigerator.

→ What can I substitute for Greek yogurt?

Sour cream works well as a 1:1 substitute. For a dairy-free option, use plain coconut yogurt or a cashew cream alternative, though the flavor profile will change slightly.

→ Is this suitable for freezing?

Yes, this freezes well. Wrap the cooled, baked casserole tightly in plastic wrap and foil, then freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.

→ How can I reduce the sodium content?

Use fresh artichokes instead of canned (rinsed thoroughly if using canned), reduce added salt to 1/8 teaspoon, and opt for low-sodium cheese varieties. The Italian herbs provide plenty of flavor without added sodium.