Healthy Fall Casserole Recipes

The genius hack in this recipe: topping sweet potatoes with marshmallows while they're still piping hot from the slow cooker yields a baked marshmallow topping that's typical with baked sweet potato casseroles.

Use leftover Italian meatball soup along with beans, reduced-fat cheese, tortillas and an easy tomato sauce to make a family-pleasing casserole that's great for weeknights.

Tender strings of spaghetti squash replace pasta in this cheesy gluten-free casserole that's studded with broccoli. Cheddar cheese melts into a bubbling topping. Serve with roasted chicken or pork or as part of a vegetarian dinner.

If you're looking for a twist on classic scalloped potatoes, this recipe using roasted sweet potatoes and melty Gruyère has all the creaminess of the original with a new flavor twist. The sweet potatoes and lightened sauce--made with flour and low-fat milk--keep it healthier than butter- and cream-laden versions. Don't cut your sweet potatoes too thin--they'll turn mushy under the sauce.

If you don't have a spiralizer to make this healthy zucchini noodle casserole (aka zoodles), use a vegetable peeler to make long thin strips of the squash and zucchini, stopping when you reach the seedy center. Just a few minutes under the broiler gives these ricotta-and-basil-filled nests a light golden top.

Reduced-fat soup, semi-soft cheese and fat-free milk make this classic casserole recipe low in fat and calories.

Fancy up regular mashed potatoes with a layer of mushroom duxelle--a sauté of finely chopped mushrooms and shallots. We omitted the traditional butter in the duxelle and added chard for a nutritional boost. Serve this hearty side in place of mashed potatoes at any holiday feast or enjoy it as a vegetarian main dish.

Zesty sauerkraut, Swiss cheese and rye bread add Reuben-esque flavor to this surprisingly addictive spaghetti squash skillet recipe. If you can't find seeded rye bread, add 1/2 to 1 teaspoon caraway seeds to the mixture in Step 2. Serve with a green salad tossed with red-wine vinaigrette.

These hasselback sweet potatoes are like mini marshmallow-topped sweet potato casseroles drizzled with sage-infused butter. The hasselback technique, slicing the potato but leaving it whole, makes for a tender potato with a crispy top--the best of both worlds.

These scalloped potatoes are surprisingly rich and creamy even though they're made with no dairy (milk, butter or cheese)--vegan comfort food at its best. We use almond milk, herbs and spices to make a flavorful sauce and finish the dish with a crunchy almond topping. This makes a satisfying side dish if you're cooking for dairy-free or vegan diets.

Need to use up leftover turkey from the holidays? Make this low fat casserole. It's made with brown rice and lots of vegetables.

Vegetable gratin recipes often have a crunchy breadcrumb or crouton topping. But summer tomatoes are too gorgeous to hide, so we tucked crusty cubes of bread underneath them instead. Plus, the bread soaks up all the juicy tomato goodness. If you can't find marjoram, fresh basil or oregano makes a good substitute.

Homemade mushroom sauce kicks the can of soup out of the picture in this veggie-centric, healthy riff on a classic tuna-noodle casserole recipe. Serve with steamed green beans.

This easy casserole, full of ground beef, roasted broccoli and topped with hash browns, was inspired by the classic Minnesota Tater Tot hotdish. Roasting the broccoli before adding it to the casserole gives the whole dish a much more complex and exciting flavor, but it's by no means necessary. If you want to keep it simple, skip roasting the broccoli (Step 2) and use 6 cups frozen broccoli, thawed, in its place (omit 1 tablespoon oil, as well).

Smoked chicken, asparagus, mushrooms, and sweet peppers are layered with bread, egg, and Swiss cheese in this quick and easy strata recipe.

Typical green bean casseroles bathe ingredients in a heavy cream sauce and top them with buttered breadcrumbs or cheese. Our healthier version saves about 160 calories and 12 grams of saturated fat compared to a traditional recipe.

Instead of loading up this comfort food side with tons of brown sugar and marshmallows, we have turned to sweet spices, vanilla and inherently sweet dried fruit to enhance the natural sweetness of the sweet potatoes. A topping of pecans and pepitas replaces traditional marshmallow topping to keep it healthy and add texture and color for a beautiful casserole.

In Minnesota, chicken, mushrooms and wild rice are often bound together in a casserole with cream of mushroom soup. We forgo the sodium-rich canned soup and make a light, creamy sauce that gets depth of flavor from dry sherry and Parmesan cheese. If you already have cooked chicken, use 4 cups and skip Step 2.

Here's a fun way to serve chili and cornbread together. Don't let the ingredient list intimidate you--this casserole is easy to make and a real crowd pleaser.

This lightened-up take on the classic Thanksgiving sweet potato casserole is spiked with crushed pineapple and toasted pecans. We top it with an airy, slightly sweet meringue. You can pipe the meringue to make it look fancy or simply spread it neatly with a rubber spatula.

Layers of tortillas, chicken and vegetables with a creamy goat-cheese sauce create a lasagna-like Mexican casserole dish for an easy, healthy dinner the whole family will love.

New England seafood chowder inspired the flavors here, but we've enhanced them further with Gruyère cheese and a crispy crumb topping. We like the combination of shrimp, cod and crab, but feel free to experiment with other types of seafood--scallops, clams and mahi-mahi would also work well.

Known as Tuna-Pea Wiggle to some, this family-friendly tuna noodle casserole tends to be made with canned soup and whole milk, which means high fat and sodium. We remedy this by making our own creamy mushroom sauce with nonfat milk thickened with a bit of flour. Look for whole-wheat egg noodles--they have more fiber than regular egg noodles (but this dish will work well and taste great with either).

Grated butternut squash, pine nuts and sautéed leeks in a creamy white sauce are layered with sheets of whole-wheat pasta for this wintery variation on a vegetable lasagna. Any Parmesan cheese can be used in this casserole, but we recommend Parmigiano-Reggiano for its superior flavor.