1940s Cheese Potato Onion Casserole

This 1940s Cheese Potato Onion Casserole is a comforting and classic dish, embodying the resourceful and delicious cooking of the era. It features tender mashed potatoes and caramelized onions, all baked together under a bubbly, golden layer of cheddar cheese. It’s a truly satisfying side dish or light main course.

1940s Cheese Potato Onion Casserole

Ingredients:

Instructions:

1. Preheat Oven & Prep Dish: Preheat your oven to 375°F (190°C). Grease a 9×9 inch baking pan with baking spray and set it aside.
2. Cook and Mash Potatoes: Add the chopped potatoes into a large stock pot. Cover with water and add a generous pinch of salt. Place over medium-high heat, bring to a boil, and cook the potatoes until they are fork-tender. Drain the cooked potatoes thoroughly, transfer them into a bowl, and roughly mash them with a fork.
3. Sauté Onions & Combine: Melt the unsalted butter in a saucepan over medium heat. Add the diced onions and sauté until they are tender and golden brown. Transfer the sautéed onions into the bowl with the mashed potatoes. Mix them together well, along with the dried thyme and some more kosher salt and freshly cracked black pepper to taste.
4. Assemble and Bake: Transfer the potato-onion mixture evenly into the prepared baking dish. Top generously with the grated white or orange cheddar cheese. Bake in the preheated oven for about 15 to 20 minutes, or until the top is bubbly and golden brown.
5. Serve: Remove from the oven and serve warm. Enjoy!