Green Bean Casserole from Scratch Recipe

Add the diced onion and cook until softened and translucent, about 4 minutes.

Stir in the mushrooms, onion powder, 1 teaspoon salt, thyme, and pepper. Continue to cook for another 3 to 5 minutes, until the mushrooms release their liquid and soften.

Pour in the milk and sherry, bringing the mixture to a simmer while stirring often to smooth out any flour lumps.

Stir in the cooked green beans and let it return to a simmer. Cook, stirring, until everything is heated through, about 1 minute. Finally, stir in the cream.