1. Preheat your oven to 350°F. While preheating, prepare ingredients by slicing potatoes thinly and grating the cheese.
2. Brown 1 pound of ground beef in a large skillet, seasoning with salt, pepper, and optional spices like Cajun seasoning.
3. Add diced onions and optional minced garlic to the skillet, sautéing until onions become translucent.
4. In a mixing bowl, combine your choice of cream soups, milk, and Worcestershire sauce. Stir until you achieve a smooth consistency.
5. Layer thinly sliced potatoes in a 9×13-inch baking dish, ensuring even coverage.
6. Spread the browned ground beef mixture evenly over the potato layer.
7. Pour the soup and milk mixture evenly over the meat and potatoes for a creamy coating.
8. Sprinkle grated cheddar cheese over the top, ensuring an even layer for a cheesy finish.
9. Cover the dish with aluminum foil and place it in the oven to bake for 1 to 1.5 hours, ensuring the potatoes are fully cooked before removing the foil.
10. For a crispy topping, add French’s fried onions on top of the casserole, then place it under the broiler for a few minutes until golden brown.
11. Remove from the oven, let it cool slightly, and serve alone or with a light side salad or bread roll.