Go Back
+ servings
close up of green bean casserole with secret ingredient

Green Bean Casserole with Secret Ingredient

Print Recipe
This Green Bean Casserole utilizes a secret ingredient to boost the natural flavors of your traditional Thanksgiving favorite for a whole new dinner sides experience.
Course Sides
Cuisine American
Diet Vegetarian
Keyword Easy, Fall, Green Bean Casserole, Porcini Mushrooms, Thanksgiving Side Dishes
Prep Time 25 minutes
Cook Time 35 minutes
Total Time 1 hour
Servings 8 servings

Equipment

Ingredients

  • 1 pound fresh green beans halved
  • 1 large yellow onion
  • 3 cloves garlic
  • ¼ cup dried porcini mushrooms
  • 2 tablespoons olive oil
  • ½ teaspoon black pepper
  • 1 pinch of salt
  • 21 ounces cream of mushroom soup 21 oz usually = 2 cans
  • 4 ounces cheddar cheese
  • 2.8 ounces crispy fried onions

Instructions

  • Preheat your oven to 350°F and bring 10 cups of water to a boil in a large pot.
  • Trim the ends off your fresh green beans and cut them in half. Boil them until tender—about 10-15 minutes.
    1 pound fresh green beans
  • Dice your onions and mince your garlic.
    1 large yellow onion, 3 cloves garlic
  • Once your green beans are tender, strain them and dry them off with a kitchen towel.
  • Add cooked green beans, onions, garlic, and porcini mushrooms to a frying pan with salt, pepper, and olive oil over medium heat until onions are transparent.
    ¼ cup dried porcini mushrooms, ½ teaspoon black pepper, 1 pinch of salt, 2 tablespoons olive oil
  • Add cream of mushroom soup and mix well. Simmer on low for about 5 minutes to reduce excess moisture.
    21 ounces cream of mushroom soup
  • Transfer your green bean mixture to a 10.5" x 7.5" oven-safe casserole dish. Top with a thin layer of cheese, and finalize with a layer of crispy fried onions.
    4 ounces cheddar cheese, 2.8 ounces crispy fried onions
  • Bake for 30-35 minutes until cheese is nice and melted and crispy onions are starting to brown.

Notes

  • Always, always boil your green beans before adding them to your casserole. Squeaky green beans are not a welcoming bite!
  • Add your porcini early so they have time to rehydrate.
  • This dish is a classic holiday recipe. For more like this, check out my comprehensive list of the best Thanksgiving recipes.