Go Back
–+ servings
Make Ahead Green Bean Casserole
Print Recipe
4 from 1 vote

Make Ahead Green Bean Casserole Recipe

This easy Make Ahead Green Bean Casserole can be baked from frozen, and taken out the day of! With a sauce made from scratch with no canned soup- this fresh to frozen casserole is a great way to make a classic favorite ahead of time!
Prep Time10 minutes
Cook Time1 hour 30 minutes
Cooking without freezing45 minutes
Course: Dinner, Side Dish
Cuisine: American
Keyword: Make Ahead Green Bean Casserole, Make Ahead Green Bean Casserole Recipe
Servings: 8
Calories: 149kcal

Equipment

  • 9"x6" (roughly) sized metal or ceramic baking dish
  • plastic wrap
  • aluminum foil

Ingredients

  • 1 lb frozen (or fresh) petite green beans trim ends, if fresh
  • 2 tablespoon butter
  • 1 medium Onion, diced
  • salt and pepper, to taste 
  • 8 oz fresh button mushrooms, sliced thinly 
  • 2 cloves minced garlic 
  • 2 tablespoon all-purpose Flour
  • 1 14.5 oz can chicken broth
  • ½ cup half and half
  • 1 teaspoon Worcestershire sauce
  • 2 teaspoon soy sauce 
  • 1 ½ cups French fried onions/ crispy onions 

Instructions

Prepping the Casserole:

  • In a medium saucepan, boil green beans for 4-5 minutes, then transfer to an ice bath to cool. Drain well, removing any excess liquid.
  • In a deep sauté pan, melt butter over medium heat.
  • Add onions, and season with salt and pepper.
  • Cook, stirring occasionally, 2-3 minutes.
  • Add mushrooms, and cook, stirring occasionally 5-6 minutes.
  • Add garlic until just fragrant, 1 minute.
  • Add flour and stir well.
  • Whisk in chicken broth, Worcestershire sauce, soy sauce, and half and half.
  • Cook 6-8 minutes until thick, stirring occasionally.
  • Fold in drained green beans, and cook 2-3 minutes more.
  • Transfer to greased ceramic or metal baking dish (about 9”x6”), and allow to cool completely to room temperature.
  • Cover with a layer of plastic wrap, then with aluminum foil.
  • Freeze for up to 2 weeks.

To Bake:

  • Preheat oven to 350 degrees. Take dish out of freezer while oven is preheating.
  • Uncover and remove plastic wrap. Rewrap dish with new foil.
  • Bake covered for 1 hour.
  • Uncover, and stir well.
  • Top with even layer of crispy onions and bake for 30 minutes, uncovered, until onions are browned, and casserole is bubbly.

If Cooking right away:

  • If you are not freezing the casserole- bake for 20 minutes covered, and 25-30 uncovered.

Nutrition

Calories: 149kcal | Carbohydrates: 13g | Protein: 3g | Fat: 10g | Saturated Fat: 5g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 13mg | Sodium: 219mg | Potassium: 265mg | Fiber: 2g | Sugar: 4g | Vitamin A: 533IU | Vitamin C: 9mg | Calcium: 45mg | Iron: 1mg