Green Bean Casserole with French Onion Drop Biscuits
by
Chadwick Boyd
This is the green bean casserole that finally grew up. Chadwick Boyd takes the classic and rebuilds it from the ground up—with slow-caramelized onions, a silky béchamel, and Gruyère-packed French Onion Drop Biscuits crowning the whole thing. It’s familiar, elevated, and dangerously addictive. For more GBC recipes goto: https://www.chadwickboydlifestyle.com/
Prep Time:
30–35 minutes
Cook Time
30 minutes
Serves:
8–10 Servings
Level:
Intermediate
11 tablespoons very cold unsalted butter, divided
3 cups diced yellow onion
4 cloves garlic, minced
1½ cups plus 3 tablespoons all-purpose flour, divided
2¾ cups whole milk, divided (plus 1–2 tablespoons more if dough feels too thick)
1½ teaspoons kosher salt, divided
½ teaspoon freshly ground black pepper
2 teaspoons fresh thyme leaves, plus extra sprigs for garnish
16 ounces frozen French-cut green beans
2 teaspoons baking powder
½ teaspoon baking soda
2½ cups shredded Gruyère cheese, divided
Ingredients
Step 1 Caramelize the onions:Melt 3 tablespoons butter in a 12-inch skillet over medium-high heat. Add the diced onions and cook 10–12 minutes until browned. Reserve ½ cup for the béchamel. Chill the remaining onions.
Step 2
Make the béchamel:In the same skillet, melt 2 tablespoons butter over medium heat. Add garlic; cook 1–2 minutes. Stir in 3 tablespoons flour; cook 1 minute. Whisk in 2 cups milk until thickened. Remove from heat and stir in the reserved onions, 1½ teaspoons salt, pepper, and thyme.
Step 3
Build the filling:Fold in the green beans and 1½ cups Gruyère. Transfer mixture to a 9"x13" baking dish.
Step 4
Make the biscuits:In a bowl, whisk 1½ cups flour, baking powder, baking soda, and remaining 1 teaspoon salt. Grate in 6 tablespoons very cold butter; toss. Add the chilled onions, then ¾ cup milk. Mix gently, adding up to 2 tablespoons more milk if needed.
Step 5
Top the casserole:Drop spoonfuls of biscuit dough over the filling, leaving small gaps. Sprinkle with the remaining ½ cup Gruyère.
Step 6
Bake:Bake at 375°F for 30 minutes, until the biscuits are golden and the filling is bubbling.
Instructions
Rest 5 minutes.
Garnish with fresh thyme and serve warm.