Name: Trisha Yearwood's Spinach Casserole
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 24 oz frozen chopped spinach, thawed and squeezed dry; 4 tbsp unsalted butter; 1 small yellow onion, finely chopped; 3 cloves garlic, minced; 1/4 cup all-purpose flour; 2 cups whole milk; 1/2 cup sour cream; 1/2 teaspoon kosher salt; 1/2 teaspoon black pepper; 1/4 teaspoon ground nutmeg; 1 1/2 cups shredded Monterey Jack cheese, divided; 1/2 cup grated Parmesan cheese, divided; 1/2 cup panko breadcrumbs; 1 tablespoon olive oil or melted butter

Creamy, cheesy, and bubbling around the edges, Trisha Yearwood’s Spinach Casserole is the kind of comfort food that turns a simple meal into something special. Tender spinach is tucked into a rich, velvety sauce, then finished with a crisp, golden topping that makes everyone at the table reach for seconds.

This casserole feels right at home on a holiday spread, but it’s just as welcome on a busy weeknight next to roast chicken or grilled steak. You can assemble it ahead, pop it in the oven when you’re ready, and let that irresistible aroma do the rest of the work for you.

Why You’ll Love This Spinach Casserole

This spinach casserole is all about cozy, familiar flavor with very little fuss. Frozen spinach keeps things simple, a quick stovetop cream sauce brings everything together, and a generous layer of cheese guarantees that gooey, stretchy bite we all love.

It also plays well with almost every main dish. Serve it with roasted meats, alongside a bowl of soup, or as part of a brunch buffet. The leftovers reheat beautifully, so you can enjoy that creamy spinach goodness for lunches and easy sides throughout the week.

What Kind of Spinach Works Best for This Casserole?

Frozen chopped spinach is the easiest and most reliable choice for this casserole. It’s already blanched and perfectly tender, so all you need to do is thaw it and squeeze out the excess moisture. This keeps the sauce thick, rich, and not watered down.

If you prefer fresh spinach, you can absolutely use it—just quickly sauté it in a dry skillet until wilted, then let it cool and squeeze it dry just like the frozen version. The key isn’t whether it’s fresh or frozen; it’s removing as much water as you can so the casserole bakes up creamy instead of soupy.

Ingredients for Trisha Yearwood’s Spinach Casserole

Before you preheat the oven, it helps to understand what each ingredient brings to this rich, comforting casserole. Think of this list as your flavor roadmap—each item has a job to do in building that velvety, cheesy spinach bake.

Frozen chopped spinach – The star of the recipe, giving the casserole its hearty, earthy green base.

Unsalted butter – Adds richness and flavor while forming the base of the creamy sauce.

Yellow onion – Brings sweetness and depth, balancing the richness of the cheese and cream.

Garlic – Infuses the sauce with warm, savory notes that make the spinach taste even more satisfying.

All-purpose flour – Thickens the sauce so it clings to every leaf of spinach instead of pooling at the bottom of the dish.

Whole milk – Creates a smooth, comforting cream sauce without being too heavy.

Sour cream – Adds tang and extra creaminess, keeping the casserole lush but not flat in flavor.

Kosher salt – Seasons the spinach and sauce so the flavors really pop.

Black pepper – Lends gentle heat and savory complexity.

Ground nutmeg – A classic partner to creamy spinach, adding a subtle warmth that you may not identify, but would miss if it were gone.

Monterey Jack cheese – Melts into the sauce and topping for that stretchy, ultra-creamy bite.

Parmesan cheese – Adds a salty, nutty punch and helps the top bake up beautifully golden.

Panko breadcrumbs – Give the casserole its irresistible crispy-crunchy top layer.

Olive oil or melted butter – Moistens the breadcrumbs so they toast evenly in the oven.

How To Make Trisha Yearwood’s Spinach Casserole

Once your ingredients are prepped, this casserole comes together in a few easy stages: building the sauce, combining everything in the baking dish, and baking until bubbly and golden.

Step 1 – Prep the Spinach and Baking Dish

Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with butter or nonstick spray. Thaw the frozen chopped spinach completely, then squeeze out as much liquid as you can with your hands or in a clean kitchen towel. Spread the dry spinach evenly in the prepared dish.

Step 2 – Soften the Aromatics

In a large skillet, melt the butter over medium heat. Add the finely chopped onion and cook, stirring occasionally, until soft and translucent, about 4 to 5 minutes. Stir in the minced garlic and cook for about 30 seconds more, just until fragrant.

Step 3 – Build the Creamy Sauce

Sprinkle the flour evenly over the onion and garlic. Cook, stirring constantly, for about 1 minute to remove the raw flour taste. Slowly pour in the milk while whisking to avoid lumps, then keep cooking for 3 to 4 minutes, stirring often, until the mixture thickens and gently bubbles.

Remove the skillet from the heat. Whisk in the sour cream, salt, pepper, and nutmeg. Stir in most of the Monterey Jack and Parmesan, reserving a portion of each cheese for the topping. Keep stirring until the cheeses melt into a smooth, velvety sauce.

Step 4 – Combine the Spinach and Sauce

Pour the hot cheese sauce evenly over the spinach in the baking dish. Use a spatula to gently nudge and stir so the sauce works its way down into the spinach without completely disturbing the layers.

Step 5 – Add the Crispy Topping

In a small bowl, combine the panko breadcrumbs with the reserved Monterey Jack and Parmesan. Drizzle with olive oil or melted butter and toss until all the crumbs are lightly coated and the cheese is evenly distributed. Sprinkle this mixture over the top of the casserole.

Step 6 – Bake Until Golden and Bubbly

Bake the casserole for 25 to 30 minutes, or until the edges are bubbling and the top is deeply golden and crisp. Let it rest for 5 to 10 minutes before serving so it can set slightly and scoop neatly.

Serving and Storing This Spinach Casserole

This spinach casserole is rich enough to feel indulgent but still light enough to pair with a variety of mains. As written, it comfortably feeds about 6 people as a generous side dish, or up to 8 if you’re serving several sides on the table.

Serve it hot from the oven with a big spoon, or let it cool slightly and cut into neat squares for a more polished presentation. It’s delicious alongside roasted turkey or chicken, grilled steaks, baked fish, or even as part of a brunch spread with eggs and fresh fruit.

Leftovers keep well, making this a great make-ahead side. Store cooled casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave, or warm a larger amount in a 325°F (165°C) oven until heated through. If the top needs refreshing, pop it under the broiler for a minute or two to crisp the crumbs back up.

What to Serve With Trisha Yearwood’s Spinach Casserole?

Roast Chicken or Turkey

A simple roasted chicken or turkey lets the creamy spinach shine without competing for attention. The casserole adds richness, while the poultry keeps the plate balanced and comforting.

Grilled or Pan-Seared Steak

Pairing this casserole with steak feels like a steakhouse dinner at home. The smoky, beefy flavor of the meat is perfect with the cheesy, garlicky spinach.

Baked Salmon or White Fish

Flaky, buttery fish is a lovely contrast to the dense creaminess of the casserole. Add a squeeze of lemon over both for brightness.

Tomato-Based Pasta or Lasagna

Something tomatoey and tangy, like a simple marinara pasta or lasagna, balances the richness with acidity. The spinach casserole becomes the creamy, cheesy side that rounds out the meal.

Frequently Asked Questions

Can I make this spinach casserole ahead of time?

Yes, this casserole is very make-ahead friendly. Assemble the spinach and sauce in the baking dish, cover it tightly, and refrigerate for up to 24 hours. Wait to add the breadcrumb and cheese topping until just before baking so it stays crisp. You may need to add 5 to 10 extra minutes of bake time if you’re starting from cold.

Can I use fresh spinach instead of frozen?

You can substitute fresh spinach for frozen. You’ll need to sauté or steam it first until wilted, then let it cool and squeeze out as much moisture as possible. Aim for roughly the same volume you’d get from the frozen spinach once it’s thawed and drained.

How do I keep the casserole from turning watery?

The most important step is squeezing the spinach very dry before it goes into the dish. Excess moisture from the spinach can thin out the sauce. Also, be sure to cook the flour and milk mixture long enough so it thickens properly before adding the cheese.

Can I lighten this recipe up a bit?

If you’d like a slightly lighter version, you can swap part of the whole milk for 2% milk and use reduced-fat sour cream. You can also cut back slightly on the cheese in the sauce while keeping the full amount on top for flavor and texture. The casserole will still be creamy, just a little less rich.

What other casseroles go well on the same table?

If you’re planning a full holiday or Sunday dinner spread, this spinach casserole pairs beautifully with other cozy bakes. Try a sweet-and-savory side like Southern Sweet Potato Casserole for contrast, or add another creamy favorite such as creamy cheesy scalloped potatoes. For pasta lovers, a pan of Three Cheese Baked Macaroni rounds out the menu perfectly.

Save This Pin For Later

📌 Save this spinach casserole to your Pinterest side dish or holiday board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you tweak the cheeses, add a little extra garlic, or sneak in some red pepper flakes for heat?

I love hearing how others make these recipes their own. Questions are welcome too—let’s help each other cook smarter and serve cozier meals.

Conclusion

Trisha Yearwood’s Spinach Casserole is one of those timeless, crowd-pleasing dishes that feels special but doesn’t demand all day in the kitchen. With simple ingredients, a straightforward method, and a make-ahead friendly approach, it fits effortlessly into busy weeknights and big holiday feasts alike.

Serve it once, and it’s likely to become a repeat request from family and friends. For even more cozy casseroles, brunch favorites, and everyday dinner inspiration, you can find plenty of ideas on Pinterest at Meals We Share.