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Homemade Green Bean Casserole
Learn how to make a classic green bean casserole from scratch with fresh ingredients, a creamy mushroom sauce, and crispy homemade onions. A comforting dish perfect for any gathering.
👥 8 Servings⏱️ Prep & Cook: 1h 35m⏳ Prep: 25 min🔥 Cook: 1h 10m👤 Ricardo Solis📖 cookfastrecipes
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- baking sheet
- oven
- bowl
- pot
- skillet
- whisk
- pan
- baking dish
- spatula
📝 Preparation Steps
1
First things first, preheat your oven to 400 degrees F. Grab a large baking sheet, line it with parchment paper, and give it a quick spray with non stick cooking spray. This will save you cleanup time later.
2
Place your thinly sliced onions in a large bowl. Drizzle them with the olive oil. Now, add the flour, panko breadcrumbs, garlic powder, and salt. Get your hands in there and toss everything together until the onions are nicely coated.
olive oil1 tablespoon(16 ounces) sliced baby bella mushrooms1 pound½ teaspoon garlic powdergarlic, minced3 cloves
3
Spread the coated onions onto your prepared baking sheet in an even layer. Pop them into the oven to bake for 15 to ⏱️ 25 minutes. It is a good idea to toss them with tongs every 8 to ⏱️ 10 minutes so they get crispy all over. Once they are golden brown and delicious, set them aside. Oh, and lower the oven heat to 350 degrees F for the casserole.
4
While the onions are doing their thing in the oven, let's get the green beans ready. Bring a large pot of salted water to a boil. This process is called blanching, and it keeps the beans bright green and tender crisp.
fresh green beans, trimmed2 pounds(16 ounces) sliced baby bella mushrooms1 pound
5
You will want to cook the green beans in two batches so you do not overcrowd the pot. Add half the beans and cook for just 2 to ⏱️ 3 minutes. Use metal tongs to pull them out and place them in a large bowl. Repeat the process with the remaining green beans. Then, just set the bowl aside.
fresh green beans, trimmed2 pounds(16 ounces) sliced baby bella mushrooms1 pound
6
Next up are the mushrooms, which add a ton of savory depth. Place a large skillet over medium high heat and add 2 tablespoons of butter. Once it is melted and bubbly, add your sliced mushrooms, a pinch of salt, and a dash of pepper.
butter3 tablespoons(16 ounces) sliced baby bella mushrooms1 pound
7
Cook the mushrooms, stirring every now and then, until they have released their liquid and started to turn a beautiful golden brown. This usually takes about 8 to ⏱️ 10 minutes. Be patient here, it is worth it! Stir in the fresh thyme, red pepper flakes, and minced garlic. Cook for one more minute until you can smell the amazing aroma.
½ teaspoon garlic powder(16 ounces) sliced baby bella mushrooms1 poundgarlic, minced3 cloves
8
Using the same skillet, it is time to make the sauce that brings this Green Bean Casserole together. Melt 2 tablespoons of butter over medium heat. Whisk in the flour and cook for about ⏱️ 30 seconds. This little paste is called a roux, and it is what will thicken our sauce.
butter3 tablespoons(16 ounces) sliced baby bella mushrooms1 pound
9
Now, very slowly, start pouring in the broth while you whisk continuously. You need to whisk quite a bit to keep it smooth and free of lumps. Once all the broth is in and the mixture is smooth, turn up the heat to bring it to a boil. Then, reduce the heat and let it simmer for about ⏱️ 5 minutes, stirring occasionally. The sauce will thicken up nicely, like a gravy.
10
If it seems too thick, just add a splash more broth. Turn off the heat and stir in the parmesan cheese. Give it a taste and season with salt and pepper as needed. This homemade sauce makes all the difference in a Green Bean Casserole From Scratch.
(16 ounces) sliced baby bella mushrooms1 poundSalt and pepperFreshly ground salt and pepper, to taste
11
We are in the home stretch! Grab a 2 quart baking dish or a 9 by 13 inch baking pan. Grease it with non stick spray, butter, or olive oil. Add your blanched green beans, the cooked mushrooms, and about one quarter of those crispy onions you made. Gently toss them all together right in the dish.
butter3 tablespoons(16 ounces) sliced baby bella mushrooms1 poundolive oil1 tablespoonfresh green beans, trimmed2 pounds
12
Pour that beautiful, creamy sauce all over the green bean mixture. Use a spatula to make sure everything is evenly coated. Now, cover the dish with foil. This will help it cook through without the top browning too quickly.
13
Place the covered casserole into your preheated 350 degree F oven. Bake for 25 to ⏱️ 30 minutes, until the sauce is bubbly and everything is heated through. Carefully remove the foil. Sprinkle the remaining crispy onions all over the top.
14
Return the casserole to the oven, uncovered, and bake for another 5 to ⏱️ 10 minutes. You just want the onions to get extra toasty and the top to look golden. Let it rest for a few minutes before serving. Enjoy your homemade dish!
Nutrition Facts
calories
280 calories
fat Content
18g fat
serving Size
1/8 casserole
fiber Content
5g fiber
sugar Content
3g sugar
sodium Content
350mg sodium
protein Content
8g protein
carbohydrate Content
20g carbs
saturated Fat Content
10g saturated fat
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