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From the Cook
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Green Bean Casserole
Instructions
1
Place the green beans in a steamer pot over boiling water and steam for 8 minutes or until fork tender.
2
Preheat oven to 400°F.
3
In a large sauce pot melt 1 tablespoon butter and sauté the chopped onion and 1/4 teaspoon of salt for 4 minutes.
4
Remove the onions and set aside in a separate bowl with the panko and parmesan cheese. Toss to evenly combine.
5
In the same large sauce pot, melt the remaining 2 tablespoons of butter, add the mushrooms and remaining 1 teaspoon of salt and sauté for 4 minutes.
6
Add the minced garlic and cook for an additional 1 minute.
7
Sprinkle 2 tablespoons of flour over the mushrooms and stir for 30 seconds until evenly coated.
8
Add the chicken broth and milk, bring to a simmer and cook for 8-10 minutes or until thickened. If you run your spoon through the sauce and it immediately runs back together, continue to reduce.
9
Add the beans to the sauce and then pour into a greased 8 x 8 inch baking dish.
10
Sprinkle with onion/panko mixture on top, lightly spray with cooking oil and bake for 25 minutes or until the top is golden.
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Tips & Tricks (5)
- Toast Your Panko for Maximum Crunch 🥘Before adding panko to the casserole topping, toss it in melted butter and toast it in a skillet for 2-3 minutes until golden—this prevents it from absorbing moisture and ensures a crispy, satisfying texture throughout baking.
- Sauté Mushrooms Separately for Deeper Flavor 🍄Cook mushrooms in a hot pan until they release their moisture and begin to brown before adding to the casserole—this concentrates their umami flavor and prevents a watery sauce.
- Make a Proper Roux for Silky Sauce 🧈Cook flour in butter for 1-2 minutes before adding liquid to eliminate the raw flour taste and create a smooth, lump-free sauce that coats the green beans evenly.
- Blanch Green Beans Before Assembly 🫘Briefly blanch fresh green beans in boiling salted water for 3-4 minutes and ice bath them—this sets their bright color, maintains crispness, and ensures they stay tender rather than mushy after baking.
- Don't Skip the Parmesan Crust Layer 🧀Mix grated Parmesan directly into your panko topping for a savory, umami-rich crust that adds complexity and prevents the breadcrumbs from browning too quickly during baking.
Recipe Facts
My Calorie Intake
Smart Nutrition 
Nutrition Per Serving
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Glycemic Analysis
Glycemic Index
Glycemic Load
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