---
title: Green Bean Casserole
servings: 4
source:
  name: HelloFresh
  url: https://www.hellofresh.com/recipes/green-bean-casserole-beef-5d9c9642168569635b1a8832
prep time: 10 minutes
cook time: 20 minutes
time required: 30 minutes
difficulty: easy
allergens:
  - Wheat
  - Milk
tags: []
rating: 0
rating_count: 0
source_chef: Recipe Development Team
review_highlights: []
nutrition: {}
image: "https://images.recipes.furrysalamander.com/Casserole%20Recipes/green-bean-casserole.avif"
---

Trim @green beans{12%oz}, then cut into 1-inch pieces. (To do this quickly, line up a few green beans and slice them all at once.) Place green beans in a #large microwave-safe bowl{} with a splash of water; cover bowl with #plastic wrap{} and poke a few holes in the wrap. Microwave until green beans are tender but still crisp, 2-4 minutes (check after 2).

Melt @butter{2%tbsp} in a #small pot{} over medium-high heat. Add @flour{2%tbsp} and cook, stirring often, until lightly browned, 2-3 minutes. Whisk in @milk{6.75%oz}, and @mushroom stock concentrate{2%unit}, and ¾ cup water. Bring to a boil and cook, stirring, until thickened, 1-2 minutes. Remove from heat and stir in @salt{½%tsp}; season generously with @pepper{}.

Drain any excess water from bowl with green beans. In an #8-by-8-inch baking dish{}, combine drained green beans, sauce, and @crispy fried onions{3%oz}.

Top green bean mixture with another ¾ cup crispy fried onions (you’ll have some left over—use the rest however you like). Bake on middle rack until sauce is bubbling and onion topping is browned and crisp, 5-10 minutes.