Smarter Green Bean Casserole | Lazy Cooking

Ingredients

• 3/4 cup white onion, chopped
• 3 cloves garlic, minced
• 2 tablespoons unsalted butter
• 8 ounces mushrooms, coarsely chopped
• 8 cups green beans, cut into 1-inch-long pieces
• 1 cup vegetable or chicken broth
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 tablespoon cornstarch
• 3/4 cup sour cream
• 1 cup cheddar cheese, shredded
• 4 ounces crispy fried onions