Cheesy Chicken and Spinach Casserole

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A comforting baked dish with tender chicken, fresh spinach, and a creamy cheese sauce, perfect for family meals. This american-inspired chicken ready in about 65 minutes pairs boneless chicken breasts, fresh, chopped spinach, (10 oz) cream of mushroom soup for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 310 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 30 min Cook: 35 min Serves 6 American cuisine 310 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 350°F (175°C). In a skillet, cook 4 chicken breasts with 1 tsp salt and 1/2 tsp pepper over medium heat until golden (about 6-8 minutes). Set aside.
  2. Step 2: In a bowl, mix 1 can cream of mushroom soup, 1 cup shredded cheddar cheese, 2 tbsp flour, and 1/2 cup milk. Stir until smooth and thickened.
  3. Step 3: In a 9x13-inch baking dish, layer cooked chicken, 2 cups spinach, and the cheese sauce. Top with remaining 1 cup cheddar cheese.
  4. Step 4: Bake for 25-30 minutes until bubbly and golden. Let rest for 5 minutes before serving, allowing the cheese to set.

Equipment for this recipe

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Frequently asked questions

How long does Cheesy Chicken and Spinach Casserole take to make?

Total time is about 65 minutes (30 min prep + 35 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Cheesy Chicken and Spinach Casserole?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep boneless chicken breasts from drying out.

Can I substitute ingredients in Cheesy Chicken and Spinach Casserole?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Cheesy Chicken and Spinach Casserole for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Cheesy Chicken and Spinach Casserole?

American chicken like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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