My Favorite Green Bean Casserole

• 2 tablespoons butter
• 1/2 cup diced onion
• 1 tablespoon minced fresh flat-leaf parsley
• 1 cup diced fresh mushrooms
• 2 tablespoons all-purpose flour
• 1 teaspoon salt
• 1/2 teaspoon ground black pepper
• 1/2 teaspoon fresh lemon juice
• 1 cup sour cream
• 2 (14.5 ounce) cans French-style green beans, drained
• 1 cup shredded Cheddar cheese
• 1 cup crushed buttery round crackers
• 1/4 cup melted butter

1. Preheat an oven to 350 degrees F (175 degrees C).
2. Melt 2 tablespoons butter in a skillet over medium heat. Cook and stir the onions, parsley, and mushrooms in the melted butter until the onions are translucent and the mushrooms are giving off their juices, 7 to 10 minutes. Add the flour, salt, pepper, and lemon juice; cook until the flour is slightly browned, 2 to 3 minutes. Stir the sour cream into the mixture. Mix the green beans into the mixture. Pour the green bean mixture into a 9-inch square baking dish. Sprinkle the Cheddar cheese over the mixture. Stir the crackers and melted butter together in a small bowl until evenly mixed; spread evenly over the Cheddar cheese layer.
3. Bake in the preheated oven until bubbly and brown, 20 to 30 minutes.

butter, onion, parsley, fresh mushrooms, flour, salt, ground black pepper, lemon juice, sour cream, green beans, cheddar cheese, buttery round crackers, butter

Taken from www.allrecipes.com/recipe/214377/my-favorite-green-bean-casserole/ (may not work)