Looking for an easy, hearty dinner that practically cooks itself? This Crockpot Ground Beef and Potato Casserole combines tender potatoes, savory ground beef, onions, garlic, and rich tomato sauce in one comforting slow cooker meal. Finished with melted cheese and fresh parsley, this family-friendly casserole is full of delicious flavor.
Perfect for busy weeknights, affordable family meals, and make-ahead dinners, this easy ground beef and potato recipe uses simple pantry ingredients and requires minimal hands-on preparation. Let your slow cooker do the work while the potatoes become tender and soak up the flavorful tomato sauce.
Recipe Overview
| Detail | Information |
| Prep Time | 20 minutes |
| Cook Time | 3–4 hours on HIGH or 5–6 hours on LOW |
| Total Time | Approximately 3 hours 20 minutes to 6 hours 20 minutes |
| Servings | 6 |
| Cooking Method | Slow cooker |
| Cuisine | American-inspired comfort food |
| Difficulty | Easy |
Why You’ll Love This Recipe
This slow cooker casserole combines protein-rich ground beef with tender potatoes and a savory tomato sauce for a satisfying meal in every serving. The onions soften as they cook, while garlic, paprika, and Italian herbs add warmth and depth of flavor.
It is also budget-friendly, easy to customize, and convenient for families. Add melted cheddar or mozzarella for a cheesy finish, or serve it without cheese for a simpler tomato-based casserole.
Ingredients
For the Potato Base
| Ingredient | Quantity |
| Potatoes, peeled and diced | 1½–2 lb (700–900 g) |
| Large onion, finely chopped | 1 |
| Olive oil or butter, for greasing | 1 tablespoon |
For the Ground Beef and Tomato Sauce
| Ingredient | Quantity |
| Ground beef | 1–1½ lb (500–700 g) |
| Marinara sauce or seasoned tomato sauce | 1 can or jar, approximately 14 oz (400 g) |
| Beef broth or water | ½ cup (120 ml) |
| Garlic cloves, minced | 2 |
| Dried oregano or Italian seasoning | 1 teaspoon |
| Paprika | 1 teaspoon |
| Salt | To taste |
| Freshly ground black pepper | To taste |
For the Cheesy Topping (Optional)
| Ingredient | Quantity |
| Shredded cheddar, mozzarella, or a cheese blend | 1½ cups |
| Fresh parsley, chopped | 1–2 tablespoons |
Step-by-Step Instructions
Step 1: Prepare the Slow Cooker
Lightly grease the inside of a 6-quart slow cooker with olive oil or butter.
Peel the potatoes and cut them into evenly sized cubes, approximately ¾ inch (2 cm). Chop the onion finely so it softens evenly during cooking.
Spread the diced potatoes across the bottom of the slow cooker, then distribute the chopped onion over them. Season lightly with salt and black pepper.
Step 2: Brown the Ground Beef
Heat a large skillet over medium-high heat and add a small drizzle of olive oil if needed.
Add the ground beef and cook for approximately 6–8 minutes, breaking it apart with a wooden spoon until it is thoroughly browned. Add the minced garlic during the final minute and cook until fragrant.
Drain excess fat if necessary. Browning the beef before adding it to the slow cooker develops a deeper flavor and helps prevent the casserole from becoming overly greasy.
Step 3: Prepare the Tomato Sauce
Add the marinara sauce, beef broth, paprika, oregano, salt, and black pepper to the skillet with the browned beef.
Stir well and let the mixture simmer gently for 2–3 minutes. This allows the seasonings to combine and creates a flavorful sauce for the potatoes.
Taste the mixture and adjust the seasoning if needed, keeping in mind that prepared marinara sauce may already contain salt.
Step 4: Assemble the Casserole
Pour the ground beef and tomato sauce mixture evenly over the potatoes and onions in the slow cooker.
Use a spoon to distribute the beef mixture across the surface. Gently press down any exposed potato pieces so they come into contact with the sauce.
Cover the slow cooker with its lid.
Step 5: Slow Cook Until Tender
Cook on LOW for 5–6 hours or on HIGH for 3–4 hours.
Cooking times may vary depending on the slow cooker, potato variety, and size of the potato cubes. Check that the potatoes are fork-tender and the sauce is bubbling gently around the edges.
The ground beef should reach an internal temperature of 160°F (71°C). If the potatoes are still firm, continue cooking and check them again after a short interval.
Step 6: Add the Cheese
If you want a cheesy casserole, sprinkle the shredded cheddar or mozzarella evenly over the top during the final 15 minutes of cooking.
Cover the slow cooker again and allow the cheese to melt completely. For a stronger flavor, use sharp cheddar; for a stretchy, melty topping, mozzarella is an excellent option.
Step 7: Garnish and Serve
Turn off the slow cooker and allow the casserole to rest for approximately 5 minutes before serving.
Sprinkle with freshly chopped parsley and spoon generous portions of the beef, potatoes, onions, and tomato sauce onto plates. Serve warm for a comforting, satisfying dinner.
Best Tips for Success
Cut the potatoes into evenly sized cubes so they cook at the same rate. Yukon Gold potatoes provide a creamy texture, while russet potatoes become softer and absorb the tomato sauce well.
Browning the ground beef before slow cooking is worth the extra few minutes because it adds flavor and improves the final texture. Drain excess grease when necessary, and avoid adding too much broth because the potatoes and other ingredients will release moisture as they cook.
For the best cheesy topping, add the cheese near the end rather than at the beginning. This helps it melt smoothly without becoming oily or overcooked.
Best Ingredient Options
Ground beef with a moderate fat content, such as 85% lean, gives the casserole plenty of flavor without producing excessive grease. Leaner beef also works well, especially when paired with a flavorful marinara sauce.
Russet, Yukon Gold, and red potatoes are all suitable. Choose russet potatoes for a softer, more casserole-like texture or Yukon Gold potatoes if you want the pieces to hold their shape while remaining creamy.
Use a good-quality marinara or seasoned tomato sauce for convenience. If using plain tomato sauce instead, consider adding a pinch of sugar if it tastes too acidic and a little extra Italian seasoning for flavor.
Recipe Variations
For a vegetable-packed version, add diced bell peppers, sliced mushrooms, or grated carrots to the skillet with the beef. You can also stir in a handful of spinach near the end of cooking.
For a spicy casserole, add crushed red pepper flakes or a little cayenne pepper to the tomato sauce. If you prefer a richer, cheesier version, combine cheddar and mozzarella or add a light layer of cheese between the beef mixture and the final topping.
For a Mediterranean-inspired flavor, add chopped olives and a little dried basil. Keep additional salt modest because olives and prepared sauces can already be salty.
What to Serve With Ground Beef and Potato Casserole
This casserole is a complete, filling meal on its own, but a fresh green salad or steamed vegetables can balance the rich tomato sauce. Green beans, broccoli, roasted carrots, or sautéed zucchini are all excellent choices.
Warm bread or dinner rolls are perfect for soaking up the remaining sauce. For a simple family dinner, serve each portion with a fresh vegetable side and a sprinkle of parsley.
Make-Ahead Instructions
You can peel and dice the potatoes, chop the onion, mince the garlic, and measure the seasonings in advance. Store prepared vegetables in covered containers in the refrigerator, and keep the raw ground beef separate from ready-to-eat ingredients.
For the best results, brown the beef and assemble the casserole shortly before cooking. If you prepare the beef mixture ahead, refrigerate it promptly in a shallow container and use it within 3–4 days. Reheat it thoroughly before combining it with the remaining ingredients if serving it as a separate prepared component.
Storage Instructions
Allow leftover casserole to cool slightly, then transfer it to shallow, airtight containers and refrigerate within two hours of cooking.
Store in the refrigerator for 3–4 days. The potatoes may absorb more of the sauce as they sit, making the casserole thicker. Add a small splash of broth or water when reheating if needed.
Reheating Instructions
For individual portions, place the casserole in a microwave-safe dish, cover loosely, and heat until steaming hot throughout. Stir halfway through heating when possible to distribute the heat evenly.
To reheat a larger portion, transfer it to a covered oven-safe dish and heat at 325°F (165°C) until hot throughout, or warm it gently in a saucepan over medium-low heat with a splash of broth.
Reheat leftovers to 165°F (74°C). Avoid overheating, which can make the potatoes break apart and the beef dry out.
Freezing Instructions
This casserole can be frozen, although the potatoes may become softer or slightly grainy after thawing. For the best quality, freeze portions in airtight, freezer-safe containers for up to 2–3 months.
Thaw overnight in the refrigerator and reheat until steaming hot throughout. Add a little broth or water if the sauce has thickened too much. If possible, freeze the casserole before adding the cheese and add freshly shredded cheese during reheating.
Common Mistakes to Avoid
Cutting the potatoes into large, uneven chunks can leave some pieces firm while others become very soft. Keep the pieces similar in size and check them with a fork before serving.
Skipping the browning step can produce a less developed flavor and leave excess fat in the casserole. Browning the beef first helps create a richer tomato sauce. Also, avoid adding too much liquid because the potatoes release moisture during slow cooking.
Adding cheese too early may make the topping oily or grainy, so wait until the final 15 minutes. Finally, check that the ground beef reaches 160°F (71°C) and that the potatoes are fully tender before serving.
Nutrition Estimate
Approximate values per serving, based on 6 servings and including the optional cheese topping.
| Nutrient | Estimated Amount |
| Calories | 400–550 kcal |
| Protein | 25–35 g |
| Carbohydrates | 30–45 g |
| Total Fat | 18–30 g |
| Saturated Fat | 7–13 g |
| Fiber | 4–6 g |
| Sugar | 5–9 g |
| Sodium | 500–850 mg |
Nutrition values are estimates and vary depending on the fat content of the beef, the brand of tomato sauce, the type of potatoes, and whether cheese is included.
Frequently Asked Questions
Do I need to brown the ground beef first?
Browning is strongly recommended. It develops a richer flavor, helps render excess fat, and improves the overall texture. It also allows you to cook the garlic briefly before adding the sauce.
Can I use ground turkey instead of ground beef?
Yes. Ground turkey is a suitable alternative. Brown it thoroughly in the skillet before combining it with the tomato sauce, and make sure it reaches an internal temperature of 165°F (74°C).
Can I use canned diced tomatoes instead of marinara sauce?
Yes, but canned diced tomatoes contain less seasoning and may produce a thinner sauce. Add Italian seasoning, salt, pepper, and a little tomato paste if you want a richer consistency.
Why are my potatoes still hard?
Potatoes may need longer if the pieces are too large, the slow cooker is very full, or the lid has been lifted frequently. Cut the potatoes evenly and continue cooking until a fork slides into them easily.
Can I make this casserole without cheese?
Absolutely. The tomato-based beef and potato casserole is flavorful without cheese. Simply omit the topping and garnish with fresh parsley before serving.
Can I prepare this recipe on HIGH?
Yes. Cook on HIGH for approximately 3–4 hours, checking the potatoes and beef toward the earlier end of that range. The exact time depends on your slow cooker and the size of the potato cubes.
Is this recipe suitable for meal prep?
Yes. Divide the cooked casserole into individual containers and refrigerate for 3–4 days. It reheats well and makes a convenient lunch or dinner for busy days.
Final Thoughts
Crockpot Ground Beef and Potato Casserole is a hearty, budget-friendly dinner made with simple ingredients and plenty of comforting flavor. Tender potatoes, savory ground beef, onions, and seasoned tomato sauce cook together to create an easy meal that works well for the whole family.
Add melted cheese for a delicious finishing touch, or keep it simple with fresh parsley. Serve it with a crisp salad or steamed vegetables, and enjoy a satisfying homemade dinner with minimal fuss.