Slow Cooker Ground Beef Casserole

A hearty, comforting casserole made right in your slow cooker. This easy recipe brings together tender ground beef, wholesome veggies, and a creamy sauce, all crowned with melted cheddar cheese. Perfect for busy days when you want a cozy meal ready when you are.

Why You'll Love This Recipe

• Truly hands-off — the slow cooker does all the work while you go about your day

• Budget-friendly — uses simple, affordable ingredients you probably already have

• Family-approved — hearty, cheesy, and packed with veggies even the picky eaters will enjoy

• Flexible — swap in whatever vegetables you have on hand

• Great for leftovers — tastes even better the next day
  

  Ingredients

  • 1 pound ground beef

  • 1 onion, chopped

  • 2 cloves garlic, minced

  • 1 cup carrots, sliced

  • 1 cup potatoes, diced

  • 1 cup corn kernels (fresh, frozen, or canned)

  • 1 cup green beans, chopped

  • 1 can (10.5 oz) cream of mushroom soup

  • 1 cup shredded cheddar cheese

  • 1 teaspoon salt

  • 1/2 teaspoon black pepper

  • 1 teaspoon dried thyme

  • 1 teaspoon dried parsley (plus extra for garnish, if desired)

  Instructions

  1. Brown the beef. In a skillet over medium heat, brown the ground beef until fully cooked and crumbly. Drain excess grease.

  2. Add aromatics. Add the chopped onion and minced garlic to the skillet. Cook until the onion softens and turns translucent, about 3-4 minutes.

  3. Transfer to slow cooker. Move the beef mixture to your slow cooker.

  4. Add vegetables. Add the sliced carrots, diced potatoes, corn, and chopped green beans. Stir gently to combine.

  5. Add sauce and seasonings. Stir in the cream of mushroom soup, salt, black pepper, dried thyme, and dried parsley until everything is well mixed.

  6. Cook. Cover and cook on LOW for 6–8 hours or on HIGH for 3–4 hours.

  7. Add cheese. About 30 minutes before serving, sprinkle the shredded cheddar cheese over the top. Cover and let it melt until bubbly.

  8. Serve. Serve hot with an optional sprinkle of fresh parsley. Enjoy!

  A Few Notes on the Ingredients

  Ground beef — I use 80/20 for the best flavor, but any lean percentage works. Just don't skip the draining step — nobody wants a greasy casserole.

  Cream of mushroom soup — this is the backbone of the sauce. If you're not a mushroom fan, cream of chicken or cream of celery work beautifully too.

  Vegetables — the combination of carrots, potatoes, corn, and green beans gives a nice variety of textures and colors. But this is where you can really make it your own.

  Cheese — sharp cheddar gives the most flavor, but mild cheddar, Colby Jack, or even a Mexican blend all work. I've even used whatever odds and ends were in the cheese drawer before, and it turned out great.

  Variations We've Tried

  Add some heat — stir in a pinch of red pepper flakes or a dash of hot sauce if your family likes a little kick.

  Extra creamy — stir in 1/2 cup of sour cream or cream cheese right before adding the cheese on top. It makes it even richer.

  Swap the veggies — peas, bell peppers, zucchini, or mushrooms all work well. This is a great recipe for cleaning out the fridge.

  Breadcrumb topping — sprinkle some buttered breadcrumbs over the cheese for a crispy finish. (Just know that this works better if you have a slow cooker that runs hot, otherwise they can get a little soggy.)

  Herb swap — try oregano or Italian seasoning if you're out of thyme and parsley.

  Tips for Success

  Don't skip browning the beef. I know it's tempting to just throw everything in raw, but browning adds so much flavor. That caramelized crust is where the magic happens.

  Cut vegetables uniformly. Aim for similar-sized pieces so everything cooks evenly. Nobody wants crunchy potatoes next to mushy carrots.

  Let it rest. Give the casserole about 5-10 minutes after you turn off the slow cooker before serving. It lets the sauce thicken up a bit.
  

  Leftovers

  This casserole keeps well in the fridge for about 3-4 days. Reheat in the microwave or on the stovetop — add a splash of milk or beef broth if it seems a little dry.

  It also freezes beautifully. Portion it into containers and freeze for up to 3 months. Thaw overnight in the fridge before reheating.

  What to Serve With It

  This casserole is a complete meal on its own, but if you're feeding a crowd, it pairs nicely with:

  • Crusty bread or dinner rolls

  • A simple green salad with vinaigrette

  • Roasted or steamed broccoli on the side  Prep time: 15 minutesCook time: 6-8 hours on LOW (or 3-4 hours on HIGH)
    Servings: 6-8
    Calories: ~450 kcal per serving