11 Mother’s Day Sunday Family Casseroles for the Buffet Spread

Mother’s Day buffet cooking gets messy when every dish needs last-minute work. These 11 casseroles focus on pans that slice, scoop, or hold their heat well, from potato bakes and creamy chicken pans to Tex-Mex layers and a slow cooker option. The mix gives the Sunday table enough variety without making one person stand at the stove while everyone else fills plates. Several recipes also work as sides, so the menu can lean lighter or heavier depending on the rest of the meal.

Mexican Casserole

Built with a 45-minute bake, Mexican Casserole brings cooked brown rice, ground turkey, bell peppers, refried black beans, Rotel tomatoes, and Mexican cheese into one sturdy pan. The yogurt and beans help bind the filling so it scoops cleanly from a buffet dish. It fits the Mother’s Day table when the family wants something heartier than a side but less formal than a plated main. Serve with chips, salsa, and a simple salad.
Get the Recipe: Mexican Casserole

Mashed Potato Casserole

For the potato side that can sit beside almost any main, Mashed Potato Casserole uses russet potatoes, cheddar, milk, sour cream, butter, green onions, breadcrumbs, and crispy fried onions. The 1-hour total time makes it a solid Sunday bake when oven space is planned ahead. Its creamy base and crunchy top give the buffet a familiar side that still cuts and scoops neatly. Serve near roast meat, chicken, or lighter vegetable dishes.
Get the Recipe: Mashed Potato Casserole

Potato Casserole

With 6 servings and a 1-hour total time, Potato Casserole turns russet potatoes, butter, cream of mushroom soup, sour cream, green onion, and cheddar into a simple baked side. The potatoes are simmered first, then coated in the creamy mixture before the final 30-minute bake. That structure helps the dish stay soft inside and browned on top for the buffet line. Add it when the menu needs a budget-friendly pan that works with several mains.
Get the Recipe: Potato Casserole

Dorito Casserole

Layered with taco-seasoned ground beef, tomatoes, green chilies, sour cream, cream of mushroom soup, nacho cheese Doritos, and Jack cheese, Dorito Casserole feeds 6 in 40 minutes. The chips give the top a crunchy layer while the beef mixture keeps each scoop filling enough for a main-dish spot. It fits a family buffet when kids and adults want something less formal than a holiday roast. Put toppings nearby for anyone building a Tex-Mex plate.
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Green Bean and Bacon Casserole

Fresh green beans make Green Bean and Bacon Casserole a 40-minute side with butter, garlic, onion, button mushrooms, chicken broth, cream of mushroom soup, Parmesan, bacon, and crispy onion strings. It carries the classic green bean casserole idea with more texture from the mushrooms and bacon. That makes it useful beside heavier potato pans because it still brings vegetables to the buffet. Serve it in a shallow dish so the onion topping stays crisp.
Get the Recipe: Green Bean and Bacon Casserole

Slow Cooker Cowboy Casserole

When oven space is tight, Slow Cooker Cowboy Casserole covers 6 servings in 5 hours and 10 minutes with ground beef, corn, cream of mushroom soup, sour cream, cheddar, onion, garlic powder, and frozen tater tots. The slow cooker handles most of the work while baked dishes use the oven. It brings a main-dish option to the Mother’s Day buffet without another pan to watch. Keep it warm in the insert and let guests scoop from there.
Get the Recipe: Slow Cooker Cowboy Casserole

King Ranch Casserole

Serving 8 in 45 minutes, King Ranch Casserole layers shredded chicken, bell pepper, sweet onion, jalapeño, cream of chicken soup, Rotel tomatoes, Mexican seasoning, corn tortillas, and Monterey Jack. The tortillas soften into the sauce, so each square holds chicken, cheese, and peppers in one scoop. It suits a Sunday buffet when the table needs a chicken casserole with enough flavor to stand on its own. Pair it with rice, beans, or a crisp salad.
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Cauliflower Casserole

For a vegetable side with a cheesy breadcrumb top, Cauliflower Casserole serves 6 in 45 minutes using cauliflower, olive oil, paprika, butter, flour, milk, panko breadcrumbs, and Parmesan. The cauliflower roasts first, then bakes under the sauce and crumb topping. That two-step method keeps the florets from turning watery on the buffet table. It works well when the spread already has potatoes and needs a lighter baked side beside them.
Get the Recipe: Cauliflower Casserole

Tater Tot Casserole

Ready in 25 minutes, Tater Tot Casserole uses ground beef, onion, garlic, Worcestershire sauce, cream of mushroom soup, cheddar cheese, and tater tots. The short total time helps when a Mother’s Day meal needs one last hot pan without a long oven slot. Beef and soup make the base sturdy, while the tots bring the crisp top people can scoop easily. Add it to the buffet for a casual main that does not need slicing.
Get the Recipe: Tater Tot Casserole

Twice Baked Potato Casserole

Loaded with russet potatoes, sour cream, milk, butter, garlic powder, onion powder, cheddar, bacon, and green onions, Twice Baked Potato Casserole serves 6 in 1 hour and 40 minutes. The potatoes bake first, then get mashed and returned to the dish with cheese and bacon on top. It gives the buffet the loaded potato effect without filling individual skins. Serve it when the meal needs a rich side that still portions cleanly.
Get the Recipe: Twice Baked Potato Casserole

Crack Chicken Casserole

Creamy chicken bakes are useful on a family buffet, and Crack Chicken Casserole serves 6 in 45 minutes with cooked chicken, ranch dressing mix, cheddar, bacon, sour cream, cream of chicken soup, Ritz crackers, and butter. The cracker topping adds crunch while the chicken mixture stays scoopable underneath. It works as a main when the table already has vegetable and potato sides. Serve hot, since the cheese and sauce are best right from the oven.
Get the Recipe: Crack Chicken Casserole