Thanksgiving casseroles are one of the easiest ways to feed a crowd without standing in the kitchen all day.

They are warm, filling, and perfect for serving family, guests, potlucks, Friendsgiving, or a big holiday dinner.

These Thanksgiving casserole ideas include cozy sides, hearty main dishes, make-ahead casseroles, cheesy bakes, vegetable casseroles, stuffing casseroles, potato casseroles, and easy recipes that can stretch across a large table.

They are the kind of dishes people go back for seconds because they feel comforting and familiar.

Use these Thanksgiving casseroles when you need simple crowd-pleasing food that is easy to prep, easy to serve, and perfect for sharing.

They work well for holiday dinners, office potlucks, church gatherings, family parties, and leftover-friendly meals after Thanksgiving.

THANKSGIVING CASSEROLES

1. Green Bean Casserole With Crispy Onions

The one nobody can skip. Creamy mushroom sauce, tender green beans, and a mountain of crispy fried onions on top.

Fresh green beans give it a better bite than canned, though canned works fine in a pinch. Add the onions in the last 10 minutes so they stay crunchy instead of soggy.

💡 Tip: Keep a second can of fried onions on hand, because the first can never seems to be enough.

2. Sweet Potato Casserole With Marshmallow Topping

Mashed sweet potatoes, brown sugar, cinnamon, all topped with toasted marshmallows. It’s basically dessert wearing a side dish costume.

Some people go pecan streusel instead of marshmallow (both are correct, fight about it at your own table).

3. Cornbread Stuffing Casserole

Sweet cornbread, celery, onion, and broth baked into a golden, slightly crisp-edged casserole. Milder and a touch sweeter than traditional bread stuffing.

Great for guests who find regular stuffing too savory. Works well with turkey sausage mixed in if you want it heartier.

4. Broccoli Cheese Casserole

Broccoli florets in a rich cheddar sauce, topped with buttery breadcrumbs. It’s the easiest way to get vegetable-skeptical relatives to actually eat their vegetables.

Sharp cheddar makes a real difference here (mild cheddar just gets lost under all that broccoli).

5. Turkey Sausage Hash Brown Breakfast Casserole

For the morning of, before the real cooking starts. Hash browns, eggs, cheese, and turkey sausage baked into one hearty dish.

Assemble it the night before and just bake it in the morning. One less thing to think about on the busiest cooking day of the year.

6. Jiffy Corn Casserole

Corn muffin mix, creamed corn, whole kernel corn, and sour cream, stirred together and baked until it sets into something between cornbread and pudding. Only five ingredients.

Great for anyone who wants a dish that’s basically foolproof.

⚠️ Budget Note: All five ingredients together usually run under $10, which makes this one of the cheapest dishes on the whole table.

7. Potatoes Au Gratin

Thinly sliced potatoes layered with cream and cheese, baked until the top turns golden and slightly crisp. Rich, indulgent, and always the first pan scraped clean.

A mandoline makes quick work of the slicing (doing it by hand takes forever and the slices come out uneven anyway).

8. Butternut Squash Casserole With Streusel Topping

Roasted butternut squash, mashed with butter and warm spices, topped with a brown sugar and pecan streusel. Tastes like fall in the best way.

Great for guests who love sweet potato casserole but want something a little different this year.

9. Brussels Sprouts Gratin

Roasted brussels sprouts folded into a Gruyere cream sauce. Even people who claim to hate brussels sprouts tend to come back for seconds.

Roast the sprouts first before adding the sauce (skipping this step leaves you with a soggy, watery casserole, learned that one the hard way).

10. Baked Mac And Cheese With Breadcrumb Topping

Sharp cheddar and gruyere sauce coating elbow macaroni, finished with a crunchy, buttery breadcrumb topping. Comfort food, no notes.

Great for the kids’ table, since it’s the one dish that never needs convincing.

11. Overnight French Toast Casserole

Cubed bread soaked overnight in a cinnamon egg custard, then baked until golden the next morning. One of the easiest make-ahead breakfasts there is.

Assemble it the night before Thanksgiving and just slide it into the oven while the coffee brews.

12. Scalloped Corn Casserole With Crackers

Corn baked in a custard-like filling, topped with buttery crushed crackers. An old-school side that shows up at just about every Southern Thanksgiving table.

Saltines or Ritz both work, though Ritz gives it a slightly richer topping.

13. Baked Spinach Artichoke Casserole

Basically your favorite party dip turned into a real side dish. Spinach, artichoke hearts, cream cheese, and parmesan baked until bubbly.

Squeeze the frozen spinach dry before mixing it in, or the whole casserole ends up watery.

14. Carrot Souffle Casserole

Pureed carrots blended with butter, sugar, and a little flour, baked until fluffy and light. Tastes almost like a dessert, which is exactly why people keep going back for more.

Great for guests who want a vegetable side that doesn’t feel like eating vegetables.

15. Wild Rice And Mushroom Casserole

Nutty wild rice, sauteed mushrooms, and a creamy sauce, baked until everything melds together. Earthier and less rich than most of the other sides on this list.

Great vegetarian option that still feels substantial enough to be a main dish alternative.

16. Funeral Potatoes (Cheesy Hash Brown Casserole)

Despite the name, this one’s a total crowd favorite. Hash browns, sour cream, cheddar, and a crunchy cornflake topping baked until golden.

Comfort food at its most unapologetic (heavy, cheesy, and completely worth it).

17. Cheesy Cauliflower Gratin

Steamed cauliflower in a Gruyere and garlic cream sauce, topped with buttery breadcrumbs. A lighter alternative to potatoes au gratin that still feels indulgent.

Don’t skip drying the cauliflower after steaming, since extra moisture waters down the sauce fast.

18. Cinnamon Baked Apple Casserole

Sliced apples baked with cinnamon, brown sugar, and a little butter until soft and syrupy. Works as a side dish or a dessert, depending on how you serve it.

Great warm with a scoop of vanilla ice cream if anyone still has room after dinner.

19. Cheesy Baked Creamed Spinach Casserole

Spinach in a rich cream cheese sauce, baked until bubbling around the edges. Not the prettiest dish on the table, but one of the most requested.

A little nutmeg goes a long way here, so don’t overdo it.

20. Turkey Sausage And Cranberry Stuffing Breakfast Casserole

Leftover stuffing, turkey sausage, eggs, and dried cranberries baked into a hearty breakfast dish. The best possible use for the stuffing that’s left over the next morning.

Great way to stretch Thanksgiving into a second, smaller feast the day after.