Side Dishes
This Del Monte Green Bean Casserole delivers the perfect balance of crispy golden topping and creamy mushroom sauce that makes it a holiday staple. The secret lies in using canned green beans for convenience while still achieving restaurant-quality texture—no one will guess it’s not homemade.
I’ve perfected this version over years of family gatherings, where it disappears faster than the mashed potatoes.
The magic starts with a creamy mushroom soup base that coats every green bean, while a buttery breadcrumb topping transforms into a satisfying crunch. This recipe stays true to the classic while offering flexibility—add crispy bacon for extra flavor or keep it vegetarian with extra cheese.
The best part? It bakes in just 30 minutes at 350°F, making it ideal for busy weeknights or holiday feasts.
By the time it comes out of the oven, you’ll have a dish that’s creamy, cheesy, and irresistibly crispy on top—a combination that makes it impossible to resist seconds. The green beans stay tender while the sauce thickens into a velvety blanket, and that golden crust?
It’s the perfect textural contrast. Serve it alongside roasted chicken or steak for a complete meal.
Whether you’re hosting Thanksgiving or just craving comfort food, this casserole delivers restaurant-quality results with minimal effort. The key is layering properly and baking until the edges are golden—no soggy tops here. Ready to make the most iconic side dish? Let’s get started.
Ingredients for del monte green bean casserole
Twelve ingredients, six servings—this classic casserole delivers holiday magic with zero fuss.
| Ingredient | Amount | Notes |
|---|---|---|
| Del Monte Green Beans 🌱 | 2 cans | Drained, not pre-cooked |
| Cream of Mushroom Soup 🍄 | 2 cans | 10.5 oz each, not instant |
| Milk 🥛 | ½ cup | Whole milk for creaminess |
| French Fried Onions 🧅 | ½ cup | For golden crunch topping |
| Panko Breadcrumbs 🍞 | ½ cup | Extra-fine for perfect texture |
| Sharp Cheddar Cheese 🧀 | 1 cup | Shredded, not pre-shredded |
| Butter 🧈 | ½ cup | Melted, unsalted preferred |
| Garlic Powder 🧄 | 1 tsp | Freshly ground preferred |
| Onion Powder 🧅 | 1 tsp | For extra depth |
| Ground Black Pepper 🌶️ | ½ tsp | Freshly cracked |
| Salt 🧂 | ½ tsp | Kosher or sea salt |
| Bacon Bits 🥓 | ¼ cup | Optional for smoky flavor |
| Mushroom Soup Mix 🍄 | 1 package | Optional for extra depth |
The Del Monte green beans are the unsung hero here—freshly canned means no wilting or prep work. Grab the 14.5 oz cans (not the tiny ones) for maximum bean content. The cream of mushroom soup should be the thick, velvety kind—none of that powdered junk. Campbell's or French's are my go-tos, but any name brand works. For the onions, French's brand gives that perfect crunch, but if you're in a pinch, Trader Joe's has a great frozen version. The sharp cheddar is non-negotiable—pre-shredded gets clumpy, so grab a block and shred it yourself. Trust me, it makes all the difference.
No French fried onions? Crushed potato chips (like Ruffles) work in a bind, but they won't be as crispy. Short on cheddar? Parmesan or Gruyère adds a fancy twist. The bacon bits are optional but add serious flavor—if you skip them, boost the cheese by 0.25 cup. For the mushroom soup mix, Knorr is the easiest to find, but any bouillon-based mix works. Pro tip: Toast your panko breadcrumbs in the oven for 5 minutes before mixing with butter—it intensifies the flavor. And if you're feeling adventurous, swap half the milk for half-and-half for extra richness.
This casserole reheats like a dream—just cover it with foil and bake at 350°F for 15 minutes. Keeps in the fridge for 4-5 days (though it’ll disappear faster), and freezes beautifully for up to 3 months. I like to assemble mine the night before and refrigerate—it bakes even better the next day. For serving, sprinkle extra French fried onions on top right before baking. The golden crust? Worth the extra minute in the oven. And if anyone asks, this isn't just a side dish—it's the star of the meal.
Why You'll Love This Recipe
- I swear by this trick: open the can of Del Monte green beans, drain them, and dump them straight in. No snipping, no peeling—just warm them with the soup and milk. The beans are already tender, so you’re basically cheating the system.
- No-Chop Needed: I swear by this trick: open the can of Del Monte green beans, drain them, and dump them straight in. No snipping, no peeling—just warm them with the soup and milk. The beans are already tender, so you’re basically cheating the system.
- Creamy Crunch Magic: That crispy Panko-topped French fried onion layer? It’s the star. The creamy mushroom soup base is rich but not heavy, and the onions add this perfect salty crunch—like a hug from your grandma’s kitchen, but with zero guilt.
- Dinner Party Ready: Between us, this is my go-to for potlucks. It’s hearty enough for a crowd but still feels fancy when you sprinkle those golden fried onions on top. Serve it warm or cold—either way, people will ask for the recipe.
Step-by-step instructions for Del Monte green bean casserole
Here's how to create that perfect combination of crispy golden topping and rich, creamy mushroom filling everyone will love.
Prepare the Green Bean Base
Drain the 2 cans of Del Monte Green Beans thoroughly and pat them dry with paper towels to remove any excess moisture. This step is crucial for preventing a watery casserole. Transfer the beans to a large mixing bowl and set aside.
In a separate medium bowl, combine the 2 cans of Cream of Mushroom Soup, the 0.5 cup of Milk, and the 1 package of Mushroom Soup Mix. Whisk vigorously until smooth and fully incorporated. This creates the creamy foundation that will coat every green bean perfectly.
Add the 0.25 cup of Bacon Bits (if using) to the soup mixture and stir gently. The bacon will infuse its smoky flavor throughout the creamy base. Taste the mixture and adjust seasoning with the 0.5 tsp Salt and 0.5 tsp Ground Black Pepper if needed. This is your flavor base - get it right now.
Combine and Season the Filling
Pour the creamy mushroom mixture over the drained green beans in the mixing bowl. Using a rubber spatula, gently fold everything together until the beans are evenly coated in the sauce. The beans should be fully immersed but not mashed.
In a small bowl, combine the 1 tsp Garlic Powder, 1 tsp Onion Powder, and any additional 0.5 tsp Salt if needed. Sprinkle this seasoning blend evenly over the green bean mixture and toss gently to distribute. This dry seasoning will enhance the flavors as it bakes, creating that restaurant-quality depth.
Transfer the green bean mixture to a greased 9x13-inch baking dish, spreading it out evenly. The layer should be about 1 inch thick for even baking. This preparation ensures your casserole will bake uniformly with that perfect texture throughout.
Create the Crispy Topping
In a small bowl, combine the 0.5 cup Panko Breadcrumbs, 1 cup Sharp Cheddar Cheese, and 0.5 cup French Fried Onions. The cheese should be freshly shredded for maximum melt and flavor. Using your fingers, mix everything together until well combined and the cheese is evenly distributed.
Melt the 0.5 cup Butter in a small saucepan over low heat until completely liquid but not browned. Pour this melted butter over the breadcrumb mixture and stir until fully incorporated. The butter will bind the topping together and create that golden, crispy finish we're after.
Sprinkle the buttery breadcrumb mixture evenly over the green bean filling in the baking dish. Use a spatula to gently press down lightly on the topping to help it adhere to the filling. This ensures maximum contact for that perfect crispy layer.
Bake to Golden Perfection
Preheat your oven to 375°F. Place the baking dish on the center rack of your oven and bake for 30 minutes. After 30 minutes, the topping should be lightly golden but not yet crispy. This is when the magic happens.
Remove the casserole from the oven and increase the heat to 425°F. Return the dish to the oven and bake for an additional 10-15 minutes until the topping is deep golden brown and crispy. You'll know it's perfect when you see the edges starting to brown and the top has that irresistible crunch.
Let the casserole rest for 10 minutes before serving. This resting period allows the filling to set slightly and makes it easier to cut clean slices. The contrast between the crispy topping and creamy filling will be absolutely incredible - just as promised!
Pro Tips For Making Del Monte Green Bean Casserole
- DRAIN AND RINSE BEANS: The canned green beans come packed in saltwater—skip the rinse if you like a saltier dish, but I learned the hard way that leftover brine makes the casserole soggy. Drain well and give them a quick cold-water rinse to cut excess salt, then drain again. (Yes, even if you’re impatient like me.)
- SAUTE THE ONIONS FIRST: French fried onions lose their crunch when mixed directly into the creamy soup base. Toss them in a dry skillet for 2-3 minutes until fragrant and lightly toasted—this adds depth and keeps them crispy on top. (Your future self will thank you.)
- LAYER BREADCRUMBS LAST: Sprinkle the Panko after baking, not before. The heat from the casserole will toast it perfectly in the final 3-5 minutes, giving you that golden crust without burning it. If you’re worried about uneven browning, broil for 1-2 minutes at the end.
- USE WHOLE MILK, NOT 2%: The recipe calls for milk, but I’ve found whole milk makes the sauce richer and prevents curdling when mixed with the soup. If you’re using low-fat, add 1 tablespoon of butter to compensate—trust me, the texture changes noticeably.
Flavor customization for these flavors
Classic Creamy Twist
For a richer, velvety texture, replace half the milk with ½ cup heavy cream or ½-and-half. This creates a luxurious sauce that clings beautifully to the green beans. I also recommend adding 1 tbsp Dijon mustard to the soup mixture—it adds subtle tang that cuts through the richness.
For extra depth, stir in 1 tsp Worcestershire sauce along with the garlic and onion powders. 🍄
Smoky Bacon Lover’s
If you love bacon, go all out by using ½ cup crispy bacon bits instead of the optional amount. For even more flavor, cook 4 slices of bacon until crispy, then crumble and mix into the soup base.
Save the bacon fat and use it to sauté 1 minced garlic clove before adding to the topping—this infuses the breadcrumbs with smoky aroma. Trust me, your casserole will taste like it’s been simmering for hours. 🥓
Vegetarian Cheese Boost
Skip the bacon entirely and compensate with ½ cup extra sharp cheddar plus ¼ cup grated Parmesan. For a nutty twist, fold ¼ cup toasted pecans into the topping before baking.
Another great option is ½ cup panko mixed with 2 tbsp nutritional yeast for a cheesy, umami-rich alternative. This version still delivers that satisfying crunch while keeping it completely plant-based. 🧀
Spicy Kick Variations
Add ½ tsp smoked paprika and ¼ tsp cayenne pepper to the dry seasoning blend for a subtle smoky heat. For more kick, stir 1 tbsp hot sauce (like Frank’s RedHot) into the soup mixture before combining with the beans.
If you love cheese with heat, swap ¼ cup of the cheddar for Monterey Jack—it’s milder but still melty. Garnish with chopped jalapeños before serving for fresh spice. 🌶️
Herb-Infused Freshness
Brighten up the classic flavors by adding 1 tbsp chopped fresh parsley or 1 tsp dried thyme to the soup mixture. For a garlic lover’s version, sauté 2 minced garlic cloves in 1 tbsp butter before mixing with the breadcrumbs.
A sprinkle of fresh chives on top right before serving adds a lovely pop of color and freshness that balances the richness. 🌿
Low-Carb Crunch
Replace the panko topping with a crispy almond flour crust for a keto-friendly option. Mix ½ cup almond flour with 2 tbsp melted butter and 1 tbsp grated Parmesan, then press onto the casserole.
For extra crunch, top with 2 tbsp crushed pork rinds (they mimic the texture of fried onions). This version keeps the creamy filling but makes the topping completely low-carb. 🥜
Nutrition facts
Frequently asked questions
Can I use fresh green beans instead of canned Del Monte?
Fresh green beans will work, but you'll need to blanch them first for 3 minutes in boiling water, then drain and shock in ice water. This mimics the canned beans' texture. However, canned Del Monte beans are already pre-cooked and drained, saving you time. Fresh beans also release more moisture, so you may need to drain them extra well before mixing with the soup.
Why is my casserole topping soggy instead of crispy?
Soggy topping usually means one of three things: baking at too low a temperature, not enough butter in the breadcrumb mix, or covering it with foil too early. For crispiness, bake at 425°F for the final 10-15 minutes uncovered. Also ensure your butter-to-breadcrumb ratio is 1:1 (equal parts by volume). If the topping still seems damp, broil for 1-2 minutes at the very end.
Can I make this casserole ahead of time?
Assemble the casserole completely (including topping) and refrigerate for up to 24 hours before baking. The chilled version will take about 10-15 minutes longer to bake. For best results, let it sit at room temperature for 30 minutes before baking. You can also freeze the assembled (unbaked) casserole for up to 3 months—just thaw overnight in the fridge before baking.
What's the best way to reheat leftovers?
Cover the casserole with aluminum foil and reheat at 350°F for 15-20 minutes until heated through. For extra crispiness, uncover and broil for 1-2 minutes at the end. Microwaving works in a pinch (cover with a damp paper towel, 30-second intervals), but it won't restore the crispy texture. The best reheating method is always in the oven.
Can I make this vegetarian or vegan?
For vegetarian, simply omit the bacon bits and add ½ cup extra cheese (like Parmesan or Gruyère). For vegan, replace the cream of mushroom soup with 1.5 cups unsweetened almond milk mixed with 1 tbsp nutritional yeast and 1 tsp white miso paste. Use vegan butter in the topping and swap cheddar for vegan cheese shreds. The texture will be slightly different but still delicious!