Side Dishes
This Del Monte-style green bean casserole delivers that nostalgic, creamy mushroom topping magic we all grew up loving. The secret lies in layering canned green beans with a rich, velvety sauce and golden crispy topping—no fancy prep required.
I’ve perfected the method over years of holiday gatherings, ensuring every bite brings back childhood comfort.
The recipe stays true to the classic while offering flexibility—use gluten-free crackers for the topping or swap butter for olive oil for a lighter version. With just 30 minutes of hands-on time and 350°F heat, you’ll transform simple ingredients into a side dish that steals the show.
The creamy mushroom sauce binds everything together, creating that signature texture we crave.
By the time it emerges from the oven, you’ll have a bubbling, golden casserole with tender green beans peeking through a luscious, crispy topping. This is the kind of dish that disappears quickly, leaving guests asking for seconds.
Whether you’re hosting Thanksgiving or a weeknight dinner, this recipe delivers restaurant-quality results at home.
Serve warm with roasted chicken or meatloaf for the full experience. Ready to recreate this timeless classic? Let’s get started with the full instructions.
Ingredients for del monte green bean casserole
Six simple ingredients create that nostalgic, creamy green bean casserole magic everyone loves.
| Ingredient | Amount | Notes |
|---|---|---|
| Canned Green Beans 🥦 | 2 cans | Drained, not pre-cooked |
| Heavy Cream 🥛 | ½ cup | Full-fat for creaminess |
| Mushroom Soup Mix 🍄 | 1 package | Like Campbell's Cream of Mushroom |
| Milk 🥛 | ¼ cup | Whole milk preferred |
| French Fried Onions 🧅 | 1 package | Like Lawry's, for topping |
| Ritz Crackers 🍞 | 2 cups | Crushed, gluten-free option |
| Butter 🧈 | ½ cup | Melted, salted or unsalted |
| Salt 🧂 | ½ tsp | Adjust to taste |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground preferred |
| Garlic Powder 🧄 | ½ tsp | For extra flavor boost |
| Onion Powder 🧅 | ½ tsp | For depth of flavor |
The canned green beans are the star here—Del Monte is classic, but any good-quality brand works. I always grab the low-sodium version to control the seasoning myself. The soup mix? Campbell's Cream of Mushroom is the gold standard, but French's works too. For the French fried onions, Lawry's gives that perfect crunch, but Trader Joe's has a great budget-friendly version. The Ritz crackers are non-negotiable for that buttery crunch—gluten-free Ritz is my go-to if needed. Butter matters here—full-fat, unsalted gives the best flavor, but salted works if that's what you've got.
No mushroom soup mix? Sauté 2 cups sliced mushrooms with 2 tbsp flour, 1 cup milk, and 1 tsp cream of chicken soup for a quick sub. Short on crackers? Panko breadcrumbs or crushed potato chips work in a pinch. Want to lighten it up? Swap half the heavy cream for Greek yogurt or light cream cheese. The garlic and onion powders are optional but worth the extra 30 seconds—they add that restaurant-quality depth. If you're in a hurry, skip the crushed crackers and just sprinkle the French fried onions on top.
This casserole reheats beautifully—cover with foil if it's too hot from the fridge. Keeps for 4-5 days in the fridge, freezes for 3 months. I always make a double batch—one for dinner, one to freeze for lazy weeknights. The leftovers actually taste better the next day as everything melds together. Store the French fried onions separately if you're freezing the casserole—sprinkle them fresh when serving for maximum crunch.
Why You'll Love This Recipe
- Pantry Magic: I swear by this recipe when I forget to meal prep. Just dump the beans, stir in the soup mix and milk, then top with crispy onions—no fresh herbs, no fancy techniques. The canned beans actually make it richer somehow.
- Creamy Crunch Combo: That creamy mushroom soup base with heavy cream? It’s the kind of flavor that makes you pause mid-bite. The French fried onions add this perfect crunch that cuts through the richness—like a hug in casserole form.
- Leftovers That Don’t Suck: Between us, most casseroles turn into sad, dry bricks the next day. Not this one. The cream keeps it luscious, and I’ve reheated portions for days—even my picky teenager asks for seconds. (Yes, even on a Tuesday night.)
- Budget Win: Honestly, this is my go-to when I’m broke but need to feed a crowd. Canned beans, a box of soup mix, and a bag of onions? Under $10 feeds six. I’ll take that over trendy recipes any day.
Step-by-step instructions for Del Monte green bean casserole
Here's how to assemble this classic comfort dish with rich, velvety mushroom topping.
Prepare the Green Bean Base
Drain the 2 cans of canned green beans thoroughly and transfer them to a large mixing bowl. Give them a gentle stir to break up any clumps. The beans should be at room temperature before combining with other ingredients, so if they're chilled, let them sit for 5 minutes while you prepare the topping.
In a small bowl, whisk together the 0.5 cup heavy cream, 0.25 cup milk, 0.5 tsp salt, 0.25 tsp black pepper, 0.5 tsp garlic powder, and 0.5 tsp onion powder. Pour this creamy mixture over the green beans and stir gently to coat evenly. The mixture should look moist but not soupy - you want the beans to absorb just enough liquid to hold together when baked.
Assemble the Creamy Mushroom Topping
In a medium saucepan, melt the 0.5 cup butter over medium heat. Once melted and smooth, sprinkle in the 1 package mushroom soup mix, stirring constantly for 1-2 minutes until fully dissolved. The mixture should thicken slightly and become smooth like a light cream sauce.
Remove the saucepan from heat and let it cool for 2-3 minutes. Then carefully fold in the 2 cups crushed Ritz crackers using a rubber spatula. You want to distribute the crackers evenly throughout the mixture - this creates that signature crunchy texture while keeping the topping creamy. The cracker pieces should be about pea-sized for the best texture.
Layer and Bake to Golden Perfection
Preheat your oven to 350°F. Transfer the green bean mixture to a greased 8x8-inch baking dish and spread it out evenly. The layer should be about 1 inch thick for even baking. Here's the thing - don't press down on the beans as you spread them, or they'll get mushy when baked.
Spoon the mushroom-cracker topping evenly over the green beans, spreading it out to cover completely. The topping should be about ¼-inch thick. Sprinkle the 1 package French fried onions evenly over the top - this gives that classic crunchy finish. Bake for 25-30 minutes until the topping is golden brown and bubbly around the edges.
Rest and Serve Warm
Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This resting time allows the juices to redistribute, ensuring each bite is creamy and flavorful. The topping should be golden brown with crispy cracker pieces peeking through.
Serve warm with a side of crusty bread or a simple green salad. The contrast of the warm, creamy casserole with cool salad makes this dish even more satisfying. Each spoonful should deliver that perfect balance of creamy mushroom sauce, tender green beans, and crunchy cracker topping - the ultimate comfort food experience.
Pro Tips For Making Del Monte Green Bean Casserole
- DRAIN BEANS WELL: The canned green beans come packed in liquid—don’t just eyeball it. Dump them into a colander, run cold water over them, and shake them dry. That extra moisture turns your creamy sauce into soup, and no one wants a soggy casserole. (Yes, even if you’re impatient like me.)
- WHISK THE SOUP MIX: That mushroom soup mix clumps like a stubborn cat in a blanket. Break up the dry packet first, then whisk it into the milk before adding heavy cream. You’re not making a science experiment—just a smooth base. Skipping this step means lumpy texture, and we’re better than that.
- BAKE COVERED FIRST: Pop that casserole dish in the oven with foil sealed tight for the first 20 minutes. The heat will gel the cream and milk faster, and you’ll avoid that sad, watery top layer. After that, uncover and sprinkle onions—let them crisp while the middle finishes. Trust me, this is the thing that matters most.
- SWAP ONIONS FOR CRISPS: French fried onions are fine, but if you’re in a hurry or want extra crunch, swap them for store-bought potato or onion crisps. Toss a handful on top right before baking—no waiting for them to soften. (Your future self will thank you when you’re starving and the dish is ready in 30 minutes.)
Pro cooking tips for perfect results
Creamy Topping Secrets
The key to that signature velvety texture lies in properly melting the ½ cup butter over medium heat—never high heat, or it will burn before the soup mix dissolves. I stir constantly for exactly 1-2 minutes until the mixture thickens just enough to coat the back of a spoon.
Let it cool for 2-3 minutes before adding crackers—this prevents them from absorbing all the moisture and turning to paste. 🥛
Cracker Crunch Control
Crushing Ritz crackers into pea-sized pieces is crucial for texture. Use a food processor or rolling pin—don’t over-pulse, or you’ll end up with cracker dust. For extra crunch, I toast the crackers in the oven at 350°F for 3-4 minutes before mixing them into the topping.
This step makes all the difference in that satisfying bite. 🍞
Layering Like a Pro
Spread the green beans in an even 1-inch layer—no pressing down! This prevents mushiness. The topping should be ¼-inch thick for even browning. I use a rubber spatula to smooth the edges so nothing burns.
Pro tip: Sprinkle the French fried onions right before baking—they’ll crisp up beautifully and stay crunchy. 🧅
Baking Time Mastery
Watch for golden brown edges at 25-30 minutes—the topping should bubble but not burn. If it’s browning too fast, tent with foil. For extra insurance, I check the internal temp with an instant-read thermometer—170°F at the center ensures perfect doneness. 🌡️
Resting for Perfection
Let the casserole rest for 5-10 minutes before serving. This lets the juices redistribute, so every bite is creamy. I also store any leftovers with the French fried onions on top—they’ll stay crispy and add that final touch when reheated. 💫
Make-Ahead Magic
Assemble the casserole up to 24 hours ahead and refrigerate. Add 5-10 extra minutes to baking time when reheating from cold. For freezing, bake as directed, then cool completely before covering tightly with foil. Reheat covered at 350°F for 20 minutes, then sprinkle fresh onions on top. ❄️
Nutrition facts
Frequently asked questions
Can I make this casserole without cream of mushroom soup?
For a homemade version, sauté 2 cups sliced mushrooms with 2 tbsp flour until tender. Add 1 cup milk and 1 tsp cream of chicken soup (or bouillon), then simmer until thickened. This creates a rich, creamy base that mimics the canned soup perfectly.
How do I prevent the green beans from getting mushy?
Never press down on the beans when layering—they'll release too much moisture. Instead, spread them in an even 1-inch layer and avoid overmixing. Also, drain the canned beans thoroughly and pat them dry with a paper towel before assembling. This keeps them tender but not soggy.
Can I use fresh green beans instead of canned?
Yes, but you'll need to blanch them first. Boil 1.5 lbs fresh green beans for 3 minutes, then shock in ice water to stop cooking. Drain well and use as directed. Fresh beans have a slightly firmer texture, so they hold up better to baking.
What's the best way to reheat leftovers?
Cover the casserole with foil and reheat at 350°F for 15-20 minutes. For extra crispiness, sprinkle fresh French fried onions on top after reheating. Microwaving works too—just cover with a damp paper towel and heat in 30-second bursts until warmed through.
Is this dish gluten-free?
Not traditionally, but you can adapt it! Use gluten-free Ritz crackers for the topping and ensure your French fried onions are certified gluten-free. For the soup mix, check labels or make your own with gluten-free flour. The green beans and cream base remain naturally gluten-free.