Best Green Bean Casserole

How to Make Green Bean Casserole

Here’s a quick overview of how to make green bean casserole. It’s deliciously simple, making this a great recipe to pull together for a big holiday dinner or potluck. Keep the shelf-stable ingredients on hand and you can bake this dish at a moment’s notice! Our detailed green bean casserole recipe and ingredients list are below.

Combine Green Beans, Soup and Milk

Since this recipe uses canned beans, be sure to drain them after opening the can. We always recommend checking expiration dates and inspecting cans for any dents to ensure quality. Break out the casserole dish and combine your green beans, cream of mushroom soup and milk while heating your oven to 350°F. There’s no need to grease the dish beforehand, as the ingredients will provide enough moisture and fat to prevent sticking.

Bake and Add Fried Onions

Place your dish in the oven and bake for 20 to 25 minutes, topping your green bean casserole with those tasty fried onions for the last 5 minutes. Add as many or as few as you like—but we recommend just under 3 ounces, which you’ll find in the smaller store-bought containers.

How to Make Green Bean Casserole Ahead of Time

Have a big dinner or get-together coming up? Save some time the day of by assembling your green bean casserole the night before! Combine your green beans, soup and milk in a casserole dish, then cover and refrigerate it until you’re ready to bake it the next day. Pull it out, place it in the oven and proceed with the recipe! Just keep in mind that you may have to add a few minutes of baking time to account for the lower temperature of the chilled casserole. Once you add those crispy fried onions and bake until bubbly, you’ll have a warm, comforting green bean casserole ready to serve. It goes great with rich, hearty meats, so we recommend trying one of our beef recipes for the main course.

How to Store Green Bean Casserole Leftovers

Green bean casserole makes excellent leftovers! We especially love reheating it alongside other tasty holiday leftovers from our collection of Thanksgiving recipes. If your guests have gone and you find yourself left with some of this savory side, here’s what to do with it.

Storing Green Bean Casserole: Cover your leftover green bean casserole with plastic wrap and refrigerate immediately.

Reheating Cold Green Bean Casserole: When you’re ready to chow down on some leftovers, spoon your green bean casserole into a microwave-safe dish. Cover it loosely with plastic wrap or a microwave-safe cover and reheat your leftovers on medium-high or 70% until thoroughly heated. Your onions won’t be crispy after being stored in the fridge, so feel free to sprinkle a few additional onions over your warmed green bean casserole before enjoying.