Toss-Together Side Dish Casseroles

Buttery Spinach-Havarti Bake
These hearty and delicious side-dish casseroles are so convenient—and they pair well with your favorite entrees. Check out our variations on green bean casserole, potato gratin, and macaroni and cheese. Every easy recipe in our collection features fuss-free cooking methods and simple pantry ingredients for even your busiest days.

Autumn Potato Gratin

Layer upon layer of golden butternut squash, fresh leeks, and creamy cheese sauce take the humble potato to new heights. Make this side-dish gratin even easier by slicing the veggies a day in advance.

Cauliflower Gratin

This gorgeous layered veggie dish uses purple potatoes and cauliflower instead of white, so it's even more enticing on your dinner table. A sprinkle of breadcrumbs and a few sprigs of thyme are the cherry on top of this creamy side.

New Potato Bake

Baked potatoes get easier and cheesier in this new potato casserole. Fresh baby spinach makes this side dish even more veggie-filled, while plenty of melty Swiss cheese adds a taste of indulgence.

Baked Sweet Potatoes (Camote)

Give your usual baked sweet potatoes a little extra spice by seasoning with cinnamon and nutmeg. And if you want to add some fire to these tender potato bites, garnish with sliced jalapeno peppers.

Lightened-Up Traditional Corn Casserole

Creamy corn casserole is definitely a crowd favorite, and this lightened-up recipe is no exception. You can still toss together this corn casserole in 15 minutes, but we made it a little healthier by using fat-free milk and whole corn kernels.

BLT and Chips Casserole

That's right, we turned your favorite summer sandwich into a quick and easy casserole recipe that you can scoop up by the spoonful. The secret ingredient? Crunchy kettle chips!

Cabbage & Potato Gratin

Give potato gratin a healthy veggie boost by adding in fresh cabbage. But don't worry, this dish is still plenty creamy thanks to whipping cream and butter, plus it has a crunchy, golden-brown breadcrumb topping.

Potato-Spinach Casserole

Your mashed potatoes are getting a major upgrade. We mixed in spinach, butter, sour cream, and cheddar cheese to make this side dish casserole better than any bowl of mashed potatoes you've prepared before. If you're a real cheese lover, sprinkle a little extra cheddar on top before serving.

Spinach and Feta Casserole

If you're looking for a taste of rich, cheesy casserole goodness, this side is for you. Super creamy and loaded with spinach, this easy dish goes great with a lighter entree.

Turnips, Greens, and Pearl Onion Gratin

Make this vegetable side dish a day early to save time when prepping your entree. Crisp turnips, onions, and greens pair with a cheesy cream sauce before getting topped with crisp-crunchy bread crumbs.

Gardener's Pie

Treat guests to individual side-dish casseroles with these five-ingredient potpies. Frozen veggies combine with condensed soup before getting a hearty topping of refrigerated mashed potatoes and melty cheddar cheese.

Quinoa Caprese Casserole

Quinoa is a healthy alternative to rice that packs tons of protein and fiber into your casserole recipe. Elevate the goodness of the grain-of-the-moment with marinara sauce, a few pantry herbs, mozzarella cheese, and fresh grape tomatoes.

Swiss Vegetable Medley

With just five ingredients, this simple veggie side dish is perfect for even your busiest days. Follow the recipe to feed a crowd, or halve the ingredients and spoon the vegetable mixture into a 2-quart baking dish for a small get-together.

Vegetable-Pesto Risotto Casserole

Treat your family to a healthy side of grains and a hearty helping of veggies with this pesto-flavored casserole. After cooking your rice, simply blend with five types of vegetables and a white wine sauce, then bake to perfection.

Scalloped Sweet Potatoes

Upgrade your side of sweet potatoes with an indulgent Fontina cheese cream sauce and a sprinkle of fresh thyme or rosemary. The easy side-dish casserole takes just 15 minutes to prep.

Smoky Chicken and Cheesy Potato Casserole

Five ingredients are all it takes to put together this favorite potluck casserole. A silky blend of condensed soup, sour cream, and cheddar cheese coats frozen hash browns and roast chicken before slow-cooking into a blissfully bubbly side dish.

Classic Green Bean Casserole

Bread crumbs with tender sweet onions top this casserole instead of the traditional high-fat fried onion rings. Serve the healthy side dish with roasted chicken.

Creamy Macaroni and Cheese

Classic mac 'n' cheese makes an easy pasta side dish thanks to a few convenient pantry ingredients. Skip the time-consuming white sauce traditional to macaroni and prep your pasta with a creamy combination of evaporated milk and condensed soup.

Heart-Healthy Cheesy Potatoes

No dinner would be complete without a hearty scoop of potatoes. Keep frozen hash browns light yet creamy with reduced-fat ingredients like sour cream, condensed soup, and cheddar cheese.

Vegetable Casserole

Polenta, Italian cheese, two kinds of beans, and a rainbow of vegetables simmer with garlic and basil pesto to create this delicious vegetarian dish. The colorful side cooks in your slow cooker so you can prepare your entree with ease.

Creamed Corn Casserole

Frozen corn gets a creamy makeover with the help of cream cheese and fresh red pepper. Baked until bubbly, the easy corn casserole pairs well with roasted chicken or turkey.

Buttery Spinach-Havarti Bake

Build an easy, satisfying side-dish casserole around frozen chopped spinach. Bold Havarti cheese makes the bubbly vegetable casserole as delicious as its meaty counterparts.

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