Homemade Green Bean Casserole

Name: Homemade Green Bean Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 1 lb fresh green beans; 2 tbsp butter; 1 yellow onion, chopped; 2 cloves garlic, minced; 2 tbsp all-purpose flour; 1 cup milk or half-and-half; 1 cup vegetable or chicken broth; ½ cup sour cream (optional); 1 cup mushrooms, chopped; 1 tbsp soy sauce or Worcestershire sauce; Salt and black pepper to taste; 1 cup French fried onions