It's loaded with ooey gooey cheesy goodness and is one of the best nostalgic cheesy potato recipes. This recipe for Cheesy Potato Casserole is perfect for a family dinner or holiday dinner idea.
In a skillet over medium heat, add the butter. Once melted, add the onion and cook, stirring frequently, until the onion lightly caramelizes - about 5 minutes. Set aside.
In a large mixing bowl, add the shredded potatoes, cream of mushroom soup, sour cream, 1 ½ cup shredded cheese, the cooked onions, garlic salt, and chicken broth.