Crock Pot Hamburger Potato Casserole cooks up ground beef and potatoes in a creamy and cheesy sauce! This old-fashioned dish made with just a few ingredients makes a satisfying and delicious meal that's perfect for dinner on a busy weeknight or Sunday supper!
Add ground beef to a large skillet over medium heat and cook until browned. Then, add onions and continue to cook for 5-7 minutes. Onions will become soft and translucent. Drain and set aside.
Add mushroom soup, milk, salt, black pepper, onion powder, garlic powder, and Italian seasoning in a large bowl. Mix until well combined.
Layer half of the sliced potatoes on the bottom of the slow cooker. Top with half of the ground beef. Pour half of the soup mixture over the top. Then top with half the sliced carrots and 1 cup of cheddar cheese. Repeat with remaining ingredients.
Cover and cook on High for 4-5 hours or Low for 7-8 hours.
Let casserole cool for 10-15 minutes before serving.
Notes
Slicing the Potatoes. It's important the potatoes are all sliced about the same thickness so they cook evenly. While you can do this by hand, I like to use a Mandolin Slicer, a reliable and easier way to slice them.
Make Ahead. Assemble and layer all the ingredients as directed in the crock pot liner. Store the covered liner in the fridge for up to 24 hours. When you're ready to cook it, remove it from the fridge, cover it with a lid, and begin to slow cook. Since all the ingredients are cold, you may need to add on an hour or so to the cooking time.
Drain the Ground Beef. Drain the excess grease off before adding it to the crock pot to prevent the dish from being too greasy.
Serve for a Crowd. Double all the ingredients if you need to feed a large group or want leftovers. Use the "2X" button in the recipe card to calculate the quantity of ingredients for a double batch. Make sure to use a large crock pot that will hold at least 6 quarts. You may also need to increase the cooking time by an hour or two when doubling the recipe.