Grandma’s Church Potluck Casserole (The One She Never Wrote Down)

This recipe is the reason I started this blog. It’s Nana Ruth’s, and almost losing it is what made me understand that these recipes aren’t just food—they’re the way she says “I love you” to people she’s never going to see again.

Jake grew up eating his grandma’s version of this same kind of casserole — every family in the Midwest has one. When I made this for the first time, he took one bite and said, “This tastes like going to Grandma Whitaker’s after church.” That might be the highest compliment he’s ever given a recipe.

Five years ago, I was cleaning out an old box. I found a stained index card with her handwriting on it—the casserole recipe, the one that showed up at every church potluck, the one that fed us after my grandfather’s funeral. I hadn’t made it in years. I didn’t even remember what went in it.

So I called Aunt Darlene. She told me what I’d forgotten: Grandma always used the cheap cream of mushroom, not the fancy kind. She added a little sour cream. She didn’t make it complicated. That was the whole point.

This is the casserole that shows up in church nurseries and funeral halls. The one that people bring when they don’t know what else to do but want to help feed a family. The one that tastes like every Sunday dinner in my childhood, all combined into one Pyrex dish.

There’s nothing precious about it. The rice might be a little soft. The cream of mushroom soup might look a little bland. But it works. It feeds eight people, or twelve, or however many are sitting around your table. And it tastes like home, which is the only thing that ever mattered to Nana Ruth anyway.

How to Make Grandma’s Church Potluck Casserole

Start by cooking your rice and browning the chicken. You want the rice a little underdone—it’ll finish in the oven and soak up all that creamy sauce. Dice up whatever chicken you’ve got (thighs work beautifully here), season it simply with salt, pepper, and a little garlic powder, and brown it in a skillet until it’s got some color. It doesn’t need to be cooked through—it’ll finish in the casserole.

Mix your sauce together right in the baking dish. Cream of mushroom soup, a good dollop of sour cream, chicken broth, and a handful of shredded cheddar. Stir it all up right there in the 9×13. Nana Ruth never dirtied an extra bowl if she didn’t have to, and neither do I.

Layer everything in and top with more cheese. Fold the rice and chicken into the sauce, spread it even, and cover the top with the rest of your cheddar and a sprinkle of Ritz crackers (or French fried onions — both work) if you’re feeling fancy. Cover with foil and bake at 350°F for about 35 minutes, then uncover for the last 10 to let that top get golden and bubbly.

Let it rest for a few minutes before serving. I know that’s hard when the whole house smells like a Sunday you remember, but the sauce sets up and every scoop holds together better. This feeds a crowd, reheats beautifully, and freezes like a dream.

If you love a good potluck dish, my Dill Pickle Dip and Nana Ruth’s Deviled Eggs are two more things I am always asked to bring. For another easy chicken dinner at home, try my Sweet & Spicy Honey Butter Chicken or my Chicken Pot Pie.

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Grandma's Church Potluck Casserole

A creamy chicken and rice casserole with a buttery Ritz cracker topping — the church potluck recipe my grandmother never wrote down. Feeds a crowd, freezes beautifully, and tastes like home.

Course Main Course

Cuisine American

Keyword chicken casserole, church potluck, grandma recipe, potluck recipe

Prep Time 20 minutes

Cook Time 45 minutes

Total Time 1 hour 5 minutes

Servings 10 servings

Author Maggie

Ingredients

For the Casserole

• 4 cups cooked chicken, shredded about 2 lbs or a rotisserie chicken
• 2 cans cream of mushroom soup 10.75 oz each, regular kind
• 1 cup sour cream
• 1 sleeve Ritz crackers, crushed about 30 crackers
• 1/2 cup butter, melted 1 stick
• 2 cups cooked white rice cook 1 cup uncooked rice per package directions (about 18-20 min) to yield ~2 cups
• 1 cup frozen peas and carrots, thawed
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• salt and pepper to taste

Optional Toppings

• 1/2 cup shredded cheddar cheese
• dash of paprika for color

Instructions

1. Preheat oven to 350°F (175°C). Grease a 9x13 baking dish. IMPORTANT: If using uncooked rice, cook it first. Bring 2 cups water to a boil, add 1 cup long-grain white rice, reduce heat to low, cover, and simmer 18–20 minutes until water is absorbed and rice is tender. Verify your chicken was cooked to 165°F internal temperature before shredding. If using rotisserie chicken, the temperature is already verified.
2. In a large bowl, combine shredded chicken, both cans of cream of mushroom soup, sour cream, cooked rice, peas and carrots, garlic powder, and onion powder. Stir until evenly mixed. Season with salt and pepper — go easy on salt as the soup and crackers are salty.
3. Spread the chicken mixture into the greased baking dish and press down gently to even it out. If adding cheese, sprinkle it over the top now.
4. Crush the Ritz crackers in a zip-lock bag. Pour melted butter over the crushed crackers and stir until coated. Spread the buttered cracker mixture evenly over the casserole. Sprinkle with paprika if using.
5. Cover with foil and bake for 25 minutes. Remove foil and bake another 15-20 minutes until the top is golden and edges are bubbling.
6. Let sit 5-10 minutes before serving to set up. Serve with a green salad or buttered rolls.

Recipe Notes

The sour cream is the secret — it makes the casserole creamy without being heavy. Rotisserie chicken saves time and works perfectly. This freezes beautifully: assemble, cover with foil, freeze before baking. Thaw overnight in the fridge and bake as directed, adding 10 minutes to the covered time.

Common Questions

More Recipes You’ll Love

• Nana Ruth’s Air Fryer Chicken Thighs
• Maggie’s Sweet & Spicy Honey Butter Chicken (The Viral Flavor Done the Old-Fashioned Way)
• Nana Ruth’s Brothy White Beans
• Maggie’s Birria Ramen

What I Use for This Recipe

A couple things from my kitchen that make this one easier.

Cook N Home 8-Quart Stainless Steel Stockpot(~$25)

Big enough for Sunday soup, light enough to lift. Every kitchen needs a pot this honest.

Lodge 10.25-Inch Cast Iron Skillet(~$20)

The skillet that never leaves our stovetop. Pre-seasoned, affordable, and built to last.

T-fal Nonstick Frying Pan(~$15)

Pancakes slide right off. Eggs never stick. The pan the kids are actually allowed to use.

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