Make this savory canned green bean casserole in minutes using simple, ready-made ingredients. Tender green beans bake in a creamy mushroom sauce with crispy French-fried onions for a cozy, comforting holiday side.

Holly’s Comfort-Food Highlights
- Flavor: Tender green beans are cooked in a rich, savory mushroom sauce, topped with crispy, caramelized onions.
- Swaps: Canned cream of celery or chicken soup can be substituted for cream of mushroom. Frozen beans can be used too, just make sure they are fully thawed first.
- Time Saving Tip: Prep this casserole the day before and keep it in the fridge until your big holiday dinner!
- Serving Suggestions: Serve it with roasted turkey, ham, or chicken, and pair it with mashed potatoes and stuffing for a cozy, classic holiday plate.

Canned and Convenient Ingredients
- Green Beans: We love to make this recipe with tender canned green beans, but you can use frozen, too. Be sure to thaw frozen beans and drain and thoroughly rinse canned green beans before using.
- Sauce: Cream of mushroom soup is the standard base for the rich sauce, but you can use cream of celery or chicken if that’s what you have.
- French-Fried Onions: Crispy, crunchy, and essential to green bean casserole, but you can also use crushed Ritz crackers, Parmesan cheese, or even a package of seasoned stuffing.
Twists on Tradition
Veggies: Bulk up green bean casserole with sliced mushrooms, water chestnuts, or any leftover veggies in the fridge.
Protein: Bacon bits add smoky flavor and chewy texture. You could also add bits of spicy Italian sausage for a kick!


Tasty Tried and True Tips
- Prep up to a day ahead and top with fried onions just before baking.
- Prep and freeze green bean casserole and thaw overnight in the refrigerator. Add French-fried onions before baking.
- Use well-drained beans so the sauce stays thick.
- Stir in a splash of cream for a richer texture.
- Let it sit for a few minutes so it sets before serving.
Serve, Savor, and Save for Later
Keep leftover canned green bean casserole in the refrigerator for up to 4 days. Cover with foil and reheat portions in the oven, then top with fresh fried onions before serving.
Freeze portions in freezer-safe containers and thaw overnight in the refrigerator before reheating.
Holiday Casseroles To Try
Did you make this canned green bean casserole? Leave a rating and comment below!

Canned Green Bean Casserole
Equipment
Ingredients
- 2 (14.5 ounces each) cans green beans
- 1 (10.5 ounce) can condensed cream of mushroom soup
- ½ cup milk
- 1 cup French fried onions divided
- ⅛ teaspoon black pepper or to taste
Instructions
- Preheat oven to 350°F.
- Combine green beans, mushroom soup, milk, ½ cup of fried onions, and pepper in a 2-quart baking dish.
- Bake for 25 minutes.
- Top with remaining onions and bake for an additional 5-10 minutes or until bubbly and golden on top.
Notes
Nutrition Information
Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.
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